Select the correct relative pronoun: 'The marine biologist, ______ research on Daymaniyat coral reefs received international acclaim, will deliver the keynote lecture.'

Answer and explanation

Correct answer: D. whose

  1. Step 1: Analyze the grammatical role in the non-restrictive relative clause: the relative pronoun modifies the noun 'research' to indicate ownership by the biologist.
  2. Step 2: The possessive relative pronoun for both persons and non-persons is 'whose'.
  3. Step 3: 'Whom' is an objective case pronoun; 'who' is a subjective case pronoun; 'which' refers to non-human antecedents.
Answer
whose.
Why not the others: 'whom' is an object pronoun and cannot show possession; 'who' is a subject pronoun and cannot modify a subsequent noun phrase directly; 'which' cannot refer to a person.

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