Choose the sentence that correctly employs a non-restrictive relative clause with a prepositional object.
Answer and explanation
Correct answer: C. The university archival documents, many of which date to 1920, are preserved.
- Step 1: Inanimate antecedents ('documents') require relative pronoun 'which' following quantifiers with prepositions ('many of which').
- Step 2: Non-restrictive clauses must be set off by commas.
Answer
The university archival documents, many of which date to 1920, are preserved.
Why not the others: 'whom' is restricted to human referents; 'that many of which' creates a double pronoun error; 'many of that' cannot follow a preposition.
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