Which of the following best expresses the authors main point？A．Americans" pride in their j

Which of the following best expresses the authors main point？

A．Americans" pride in their jobs continues to give them stamina today.

B．The absence of a status quo ante has undermined United States economic structure.

C．The free enterprise system has been only a useless concept in the United States.

D．The myth of the American free enterprise system is seriously flawed.

E．Fascination with the ideal of "openness" has made Americans a progressive people.

请帮忙给出正确答案和分析，谢谢！