单项选择题

Questions 15 to 17 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.

What’s the difference between the Asian elephant and the African elephant

A.The Asian elephant is easier to tame.
B.The Asian elephant’s skin is more valuable.
C.The Asian elephant is less popular with tourists.
D.The Asian elephant produces ivory of a better quality.