单项选择题

Questions 14 to 17 are based on the following passage. At the end of the passage, you I be given 20 seconds to answer the questions. Now listen to the passage. Why did the Message Group select evolution as their mission

A.They are from the middle-class.
B.Other issues are not important at this moment.
C.This topic is manageable to them.
D.They can win the debate.