TOEFL Listening: ETS-TOEFL听力机经 - 983723Z7IZOUYGWSP$

According to the professor, how do integral emotions differ from incidental emotions? A. Integral emotions often have a surprising effect on people's choice B. Integral emotions are directly related to a decision that is being made C. Integral emotions are easier than incidental emotions to include in mathematical models D. Integral emotions are harder to control than incidental emotions