Identify the grammatically correct sentence

This question assesses knowledge of subject-verb agreement and pronoun agreement with the idiomatic phrase "many a." The phrase "many a" is followed by a singular countable noun and takes a singular verb. Consequently, any possessive pronouns referring back to this singular subject must also be singular.

• Correct Option C: "Many a soldier lost his life in the battle." is accurate. "Many a" is correctly followed by the singular noun "soldier" and the singular verb "lost." The possessive pronoun "his" correctly refers to the singular "soldier."
• Option A: "Many a soldiers lost their lives in the battle." is incorrect because "soldiers" is plural, and "their" is a plural pronoun, violating the singular agreement rule for "many a."
• Option B: "Many many a soldier lost their life in the battle." is redundant with "many many a" and incorrect because "their" is a plural pronoun referring to a singular "soldier."
• Option D: "Many a soldier lose their life in the battle." is incorrect because "lose" is a plural verb (should be "loses" or "lost" for past tense), and "their" is a plural pronoun.