问题详情

The author mentions "Baring the teeth in a hostile way" in order to______.
A．differentiate one possible meaning of a particular facial expression from other meanings of it
B．support Darwin"s theory of evolution
C．provide an example of a facial expression whose meaning is widely understood
D．contrast a facial expression that is easily understood with other facial expressions请帮忙给出正确答案和分析，谢谢！