Select the correct option:
The committee issued several directives, none of _______ were implemented.

Question

Accepted Answer

1. The phrase refers to "directives", which are things.
2. We need a relative pronoun for things in a non-defining clause.
3. **"which"** fits here: "none of which were implemented."
4. "that" is less natural after "none of", and "them" or "whom" are wrong forms.
5. So the correct choice is **(c) which**.

FINAL_ANSWER: c

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Answer

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