单项选择题

Questions 14-17 are based on the following dialogue between friends about their family. You now have 20 seconds to read Questions 14-17. What’s Mr. Clinton’s comment on his work

A.He does his job enthusiastically, though he has not much efficiency.
B.He didn’t want to persist on his job from the beginning.
C.He does his job adequately, but he doesn’t do it well enough to deserve a raise.
D.He should be dismissed anyway.