Correct option is C
The correct antonym of the given word is (c) Contract.
Amplify: To increase the volume, amount, or intensity of something. (Hindi meaning: बढ़ाना, विस्तार करना)
Example: The speaker amplified the sound to reach the entire crowd.
Contract: To decrease in size, number, or range. (Hindi meaning: सिकुड़ना, संकुचित होना)
Example: Metals contract when cooled.
Synonyms: magnify, intensify, enlarge, increase.
Antonyms: reduce, contract, diminish, shrink.
Meanings of other options:
· (a)
Exert: To apply or put forth (प्रयास करना) – unrelated.
· (b)
Defy: To openly resist (अवज्ञा करना) – unrelated.
· (d)
Enlarge: To make bigger (बढ़ाना) – synonym, not antonym.