You are presented with the quiz "What can cause an animal to leave an environment?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "natural disasters can cause animals to leave an environment" and "floods are the most common natural disaster". So, what's the best answer to the question?
Available choices:
(A). wind
(B). influenza
(C). drought
(D). Pollution
(E). mines
(F). floods
(G). chemicals
(H). coal
(F).