Select the most appropriate synonym of the highlighted word.
He was the discreet boy in our group but more hardworking than all of us.

Correct option is C

Discreet – Careful and quiet in behavior or speech, especially to avoid drawing attention or offending others
Hindi meaning: (समझदार / सोच-समझकर बोलने वाला)
Example: She was always discreet in handling sensitive matters.
Synonyms – Reserved, tactful, cautious, prudent
Antonyms – Indiscreet, reckless, careless
Meanings of all options:
(a) Loud – Making a lot of noise or drawing attention.
Hindi: (तेज आवाज़ वाला)
(b) Outspoken – Expressing opinions openly and boldly.
Hindi: (स्पष्टवादी)
(c) Reserved – Quiet and restrained in behavior or speech.
Hindi: (संकोची)
Correct synonym of "discreet"
(d) Noisy – Making a lot of noise; not quiet.
Hindi: (शोरगुल वाला)
Correct answer is (c) reserved, as it closely matches the meaning of "discreet" — someone who is quiet, cautious, and not attention-seeking.