Question 21 1 pts Bill and Shelly are friends. Bill invested in a portfolio of hot stocks that most all his friends are invested in, which was constructed using conventional investment models. On the other hand, Shelly made unconventional choices to construct a portfolio that is totally different from the portfolios of all her friends. Suppose both Bill's and Shelly's stocks fall 15 percent. According to regret theory, O Shelly will have more regret over the loss than Bill Bill's and Shelly's risk aversion will increase in the future. Bill and Shelly will have equal regret over their losses. Bill will have more regret over the loss than Shelly