Suppose your client asks for your advice about which portfolio she should invest in. After some research, you find the following risky portfolios that are suitable for your client. Based on her previous financial contracts, you estimate that her risk aversion coefficient is 8.5. The return on a 9-month T-bill is 6%. Which asset would you recommend for your client? The 9-month T-bill. The low-risk portfolio. The high-risk portfolio. The medium-risk portfolio