题是这样的：
According to a recent study, fifteen corporations in the United States that follow a credo of social responsibility are also very profitable. Because of their credos, these fifteen corporations give generously to charity, follow stringent environmental-protection policies, and have vigorous affirmative-action programs.
Which of the following can be correctly inferred from the statements above?
(A) Following a credo of social responsibility helps to make a corporation very profitable.
(B) It is possible for a corporation that follows a credo of social responsibility to be very profitable.
(C) A corporation that gives generously to charity must be doing so because of its credo of social responsibility.
DE没有疑问肯定错了就不写了。
答案是B，可是我觉得C也挺对，而且它很好的概括了文章里所有的内容，为什么它优于B呢？
请指教，多谢。
PS：我好怕归纳题。。。作者: taozhexiong 时间: 2012-10-12 19:11
原题：credos ==〉give generously to charity
C: gives generously to charity MUST coz of credo of social responsibility.
MUST太绝对了。原文可能是说credo of social responsibilit是一个可能性。C选项把意思曲解了。捐款的一定是credo of social responsibility。错
A和C错误相同。A也绝对了。following credo of social responsibility 帮助企业盈利。文章没说。
