His hunger for reading is insatiable. He reads indiscriminately. He is most certainly a/an ______ reader. A. all-round B. precocious C. voracious D. wise

GATE 2020 · General Aptitude · Most Appropriate Word · medium

Answer: C. voracious

1. Extract the key clues: Clue 1: 'insatiable hunger for reading' — the reader is never satisfied, always wants more. This points to quantity/appetite. Clue 2: 'reads indiscriminately' — no selectivity, reads everything. The blank must describe these combined traits.
2. Test each option against the clues: A. all-round — means versatile in many areas; does not capture insatiable appetite for reading specifically. Eliminated. B. precocious — means advanced for one's age; nothing about quantity or indiscrimination. Eliminated. D. wise — implies discerning and selective; actually contradicts 'indiscriminate'. Eliminated. C. voracious — means having a huge appetite (literal or figurative); a voracious reader reads large amounts indiscriminately. Matches both clues.
3. Confirm with substitution: 'He is most certainly a voracious reader.' — Substituting this: a voracious reader has an insatiable reading appetite and reads widely without discrimination. This matches both given clues perfectly. The sentence flows naturally.