单项选择题

Questions 14 to 16 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. It can be inferred from the passage that every year there are most probably more than ______ entering the U. S.

A.800,000 immigrants
B.550,000 immigrants
C.480,000 immigrants
D.300,000 immigrants