Hi, where can I get a copy of pt87? I saw many people had discussed it online now. But my order from Amazon isn't released yet. Thank you.

I'm still curisous on the first half of answer choice C. The question is asking about "a person who wants to make more money than his or her neighbors." So, this is about the rivalry thoery. As passage A says, the norm of comparing with others is motivated by two reasons, habituation and r...