<span>b. I visited the bookstore while you were shopping for a computer.
</span>Example:
"Where they can find food easily" is an example of an adverbial clause. It is an adverb of place, answering the question: Where do most animals thrive?
Adjective clauses modify the noun or the pronoun in the sentence's main clause. The first thing to do is to identify the two clauses in the sentence.
First clause: Those may enter the park (the main clause)
Second clause: whose tickets have been punched (the subordinate clause)
Since adjective clauses generally start with a relative pronoun, it is clear that the second clause is the adjective clause. The relative pronoun is "which". Another clue is that adjective clauses are always the subordinate clause. It modifies the pronoun <em>those</em><span>.<span>
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I believe it is C, because is says something they both want, and the question is asking for a comparison.
"Impact" is an effect.
So "impact" of the death means: the effect that death has on something.
For example, you could say:
The Impact of the death of the Emperor was the loss of respect for the country from the neighboring countries.
or you could say:
The impact of the death of her mother on her was devastating.
I believe the answer is a.)