Correct option is D
The correct antonym of the given word is (d) Modesty.
Audacity: daring boldness that can include impudent or shameless disregard for rules; धृष्टता/दुस्साहस. It may mean brave boldness, but often carries a nuance of impertinence.
Example: He had the audacity to question the judge’s integrity in open court.
Modesty: the quality of being unassuming and not arrogant; humility (विनम्रता/नम्रता)—the opposite attitude to audacious, showy boldness.
Example: Despite her achievements, her modesty won everyone’s respect.
Synonyms (audacity): boldness, temerity, nerve, daring.
Antonyms (audacity): modesty, humility, diffidence, timidity.
Meanings of the other options:
· (a) Boldness: courage/daring (साहस/निर्भीकता)—often a synonym, not an antonym.
· (b) Cowardice: lack of courage (कायरता)—opposes courage more than it targets the impertinent boldness nuance; exam-wise, modesty is the sharper antonym.
· (c) Bravery: courageous behavior (बहादुरी/वीरता)—a synonym in many contexts, not an antonym.