【单选题】Bill and Shelly are friends. Bill invests in a portfolio of hot stocks that almost all his friends are invested in. Shelly invests in a portfolio that is totally different from the portfolios of all h...
A.
Bill will have more regret over the loss than Shelly
B.
Shelly will have more regret over the loss than Bill
C.
Bill and Shelly will have equal regret over their losses
D.
Bill's and Shelly's risk aversion will increase in the future