Pick the grammatically correct option: One should do his duty.

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Pick the grammatically correct option: One should do his duty. Answer: One should do one’s duty.

Question context

This question is part of 🗣️ Verbal Ability within the broader 🧠 Aptitude Mastery subject and appears in the GHQ Army Selection & Recruitment Directorate (Civilian Personnel Wing) preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.