I believe it would be the last one. "Most animals thrive where they can find food easily." Because it's telling us by which the animal finds its food.
A clause can modify verbs, adverbs, and adjectives by telling us when, where, why, how, how much and under which condition. These sentences usually begin with such, as, after, because, and although.
Hope this helps. :)
Answer:
Robert Reich calls on the attorney general to resign “for the sake of our democracy” in a new video.
Explanation:
Incorrect (apologies if you get it wrong)
Answer: The answer is B I believe
