D Question 18 4 pts Consider the following intormation 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 O a. 23.07 percent O b. 22.14 percent O c. 21.08 percent O d. 24.12 percent O e. 24.97 percent Question 19 4 pts