You are presented with the quiz "When do animals need to replenish bodily water?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "thirst is used to make an animal realize that it needs to replenish its bodily water by the body" and "strong, persistent thirst can be a sign of dehydration". 

So, what's the best answer to the question?


 

    during dehydration       