A. She knows how to write best-selling novels.
B. She can earn a lot of money by writing for adults.
C. She is able to win enough support from publishers.
D. She can make a living by doing what she likes.

A. large animals were vulnerable to the changing environment
B. small species survived as large animals disappeared
C. large sea animals may face the same threat today
D. slow-growing fishes outlive fast-growing ones