Correct option is D
The antonym of "Harmony" is "Conflict." Harmony refers to a state of agreement or concord, while conflict denotes a state of disagreement or discord, which is the opposite of harmony.
· Antonyms:
Conflict, discord, strife, friction
· Synonyms: Concord, peace, unity, agreement
Meanings of the other given words:
· Adaptability: The ability to adjust to new conditions.
· Clarity: The quality of being clear and easy to understand.
· Unity: The state of being united or joined as a whole.