47.( ) Below are the four books and their descriptions（描述）. If you want to use Laing Gen’s painting as itscover, which book is best chosen?
(A) Getting Taiwan Back Its Ocean ( A group of people walk around Taiwan to tell people how to protectour beautiful oceans.)
(B) The Joy of Oil Painting ( An artist teaches people without any painting skills how to paint thebeautiful objects step by step.)
(C) My Memory (A young man who left Taiwan tries to start a new life and describes how he becomessuccessful.)
(D) A Letter to Betty (A fifteen-year-old girl writes about her life in Taiwan to her foreign friend, Betty.)