单选题 According to the passage, which of the following is true concerning the cultural determination of emotions?

• (A) Emotional expression varies between individuals to a significantly greater extent than it does between cultures.
• (B) Neither anthropologists nor Darwinists have successfully established a scientific method for comparing one emotion with another.
• (C) The cause of the emotion may vary from one historical time or geographical place to another.
• (D) It is impossible to say whether any given emotion is in fact an emotion, or merely a biological response.
• (E) It is difficult to distinguish between culturally-acquired emotions and innate ones determined by biology.