Answer:
The sentence which contains an adverbial clause is:
D) Most animals thrive where they can find food easily.
Step-by-step explanation:
A group of words who function as an adverb in a sentence is known as the adverbial clause. The adverbial clause needs to include a verb and a subject. In the above sentence, the adverbial clause is 'find food easily.' In this clause, the verb is 'find' and 'food' is the subject.