·         Probity: This is the correct term. Probity is the possession of strong moral principles; honesty and decency. It implies tested and uncompromising integrity.

·         Flattery: Excessive and insincere praise given to further one's own interests.

·         Duplicity: Deceitfulness; double-dealing; the contradictory opposite of probity.

·         Complacency: A feeling of smug or uncritical satisfaction with oneself or one's achievements.

·         Zeal: This is the correct term. Zeal is intense enthusiasm, passion, or devotion to an objective.

·         Apathy: Lack of interest, enthusiasm, or concern; the direct opposite of zeal.

·         Indifference: Lack of interest or concern; unconcern.

      ·       Lethargy: A state of being lazy, sluggish, and indifferent.

·         Obdurate: This is the correct term. Obdurate means hardening in feeling or purpose; stubbornly resistant to persuasion or moral influence; unyielding.

·         Amiable: Displaying a friendly and pleasant manner; good-natured.

·         Flexible: Able to bend easily without breaking; able to change or be changed easily.

·      Pliant: Easily influenced or yielding to others; bendable.

·         Exculpate: This is the correct term. Exculpate means to declare or prove that someone is not guilty of a fault or crime. It comes from the Latin ex- (out of) and culpa (fault or blame).

·         Incriminate: To make someone appear guilty of a crime or wrongdoing; the direct opposite of exculpate.

·         Impeach: To charge the holder of a public office with misconduct; it is a formal accusation, not a finding of innocence.

·       Prosecute: To institute legal proceedings against someone in respect of a criminal charge.

• Utopia (C): This is the correct term. A utopia is an imagined place or state of things in which everything is perfect. The term was coined by Sir Thomas More for his 1516 book Utopia, which describes a fictional island society with seemingly perfect political and legal systems.
• Cosmos (A): Refers to the universe regarded as a harmonious and orderly whole. It does not specifically imply perfection.
• Platoon (B): A military term for a small body of soldiers commanded by a lieutenant.
• Utilitarian (D): An adjective describing something designed to be useful or practical rather than attractive or having a philosophical theory that actions are right because they are useful or for the benefit of a majority.

The correct term is Irrevocable.

• Irrevocable (A): This is the precise adjective meaning that something cannot be revoked, reversed, or undone. An irrevocable decision is a final one.
• Rigid (B): This means stiff, unyielding, or inflexible. While a rigid decision might be difficult to change, the word does not mean impossible to reverse.
• Order (C) & Command (D): These are nouns referring to an instruction or directive. While a command or order must be followed, the terms describe the nature of the instruction, not the finality of the decision itself.

·         Topiary (C): This is the correct term for the horticultural practice of clipping and shaping shrubs or trees into specific decorative forms.

·         Bonsai (A): This is the Japanese art of cultivating small trees in containers by controlling the plant's growth through pruning and wiring. It focuses on miniaturization, not necessarily elaborate shapes.

·         Espalier (B): This is a technique of growing trees flat against a wall, often for fruit trees, but the shaping is two-dimensional and structured, not necessarily ornamental in the way topiary is.

Pruning (D): Pruning is the horticultural practice of selectively cutting or removing parts of a plant, such as branches, buds, or roots, to control its growth, improve its shape, maintain its health, or increase its productivity (like fruit or flower yield).

The correct term is Centenarian. This word is derived from the Latin root centum, meaning "hundred."

·        Centenarian (C): A person who has reached the age of 100 or more.

·        Oldster (A): An informal term for an old person.

·         Superannuated (B): An adjective meaning retired or discarded due to old age or obsolescence.

Nonagenarian (D): A person in their nineties (90 to 99 years old).

A "yacht" is a small, often luxurious, sailing boat or vessel designed specifically for recreational use or competitive racing. Yachts are built for speed and are commonly associated with both private leisure sailing and organized regattas.

A "dormitory" is a large room, typically in educational institutions or hostels, containing multiple beds where people sleep. It is commonly used in schools, colleges, or boarding houses to accommodate many individuals in a shared space.