Question 18 4 pts Consider the following information for Nico Ramirez's 3-stock portfolio. If an average stock currently makes 9.8 percent, and a short-term T-bill is earning 1.2 percent, what is the required rate of return on his portfolio? Stock Investment Beta $30,000 1.65 Y 45,000 3.30 Z 25,000 2.25 a. 23.07 percent O b. 22.14 percent OC. 21.08 percent O d. 24.12 percent O e. 24.97 percent Question 19 4 pts Currently, the nominal risk-free rate is 1.2 percent, the expected return on the overall market is 9.4 percent, and the beta for Las Vegas Sands' stock is 2.3. Inflation is expected to increase by 0.8 percentage point and investors' risk aversion is expected to increase by 1.8 percentage points. If these changes happen, what would investors require as a return on Las Vegas Sands' stock? O a. 20.86 percent O b. 10.06 percent O c. 25.00 percent d. 24.76 percent e. 21.92 percent