Correct option is B
The correct antonym of the given word is
(b) Harmony.
Cacophony: a harsh, unpleasant mixture of sounds; loud, jarring noise.
(Hindi meaning: कर्कश शोर/कानों को चुभने वाली आवाज़ों का मिश्रण)
Example: The cacophony of traffic made it hard to concentrate.
Harmony: a pleasing combination of sounds; musical agreement and balance.
(Hindi meaning: मधुरता/सुर-ताल का मेल)
Example: The choir sang in perfect harmony.
Synonyms (Cacophony): din, racket, clatter, discord.
Antonyms (Cacophony): harmony, melody, consonance, concord.
Meanings of all the other given options:
·
(a) Noise: unwanted or unpleasant sound
(Hindi meaning: शोर)
·
(c) Dissonance: lack of harmony; harsh sound or disagreement
(Hindi meaning: बेसुरापन/असंगति)
·
(d) Clamor: loud and continuous noise, often from a crowd
(Hindi meaning: कोलाहल/शोरगुल)