You are presented with the quiz "What are cacti?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "plants that are adapted to very dry environments are called xerophytes" and "most cacti thrive in an area with very dry periods and light rainfall". So, what's the best answer to the question?

Select from the following.
(a). Most plants
(b). rocks
(c). water
(d). vegetation
(e). xerophytes
(f). color of leaves
(g). more abundant
(h). sunlight
The answer is:
(e).