22. The 1980's have been characterized as a period of selfish individualism that threatens the cohesion of society. But this characterization is true of any time. Throughout history all human actions have been motivated by selfishness. When the deeper implications are considered. even the simplest "unselfish" acts prove to be instances of selfish concern for the human species. Which one of the following is a flaw in the argument?

(A) The claim that selfishness has been present throughout history is not actually relevant to the argument.

(B) No statistical evidence is provided to show that humans act selfishly more often than act unselfishly.

(C) The argument assumes that selfishness is unique to the present age.

(D) The argument mentions only humans and does not consider the behavior of other species.

(E) The argument relies on two different uses of the term selfish.

给的参考答案是E，我选的是A。

我认为在整篇文章中，selfish是一个意思。本文的argument是selfish individualism threatens the cohesion of society，而历史上一直有selfish与这个argument无关啊。

求帮助？