TOEFL Reading: ETS-TOEFL阅读机经 - 65_78Q8CY463B64CL$

According to paragraph 3, Walter Cannon claimed that the James-Lange theory of emotion is not convincing for which of the following reasons? A. The body can be affected by different emotions in similar ways. B. It is often not easy for people to distinguish one emotion from another. C. It is not significant enough for bodily changes to be perceived. D. It is often not obvious that bodily changes are caused by emotions or other factors.