Each of the participating scientists must submit _______ research findings by the end of the month.
Which choice completes the text so that it conforms to the conventions of Standard English?
their
its
our
his or her
Correct Answer: D
Choice D is the best answer. This question tests pronoun-antecedent agreement with indefinite pronouns.
- Context clues: "Each" is the antecedent (singular indefinite pronoun).
- Meaning: In formal writing, singular indefinite pronouns take singular pronouns.
- Verify: "Each... must submit his or her research findings" maintains formal agreement.
💡 Strategy: Indefinite pronouns like "each," "every," and "everyone" are singular and require singular pronoun references in formal contexts.
Choice A is incorrect because "their" is plural (though increasingly accepted informally). Choice B is incorrect because "its" refers to non-human antecedents. Choice C is incorrect because "our" shifts to first person inappropriately.