High Flier's common stock is expected to return 28 percent in a boom economy,14 percent in a normal economy, and -32 percent in a recession. The probability of a boom is 20 percent, of a normal economy is 70 percent, and of a recession is 10 percent. What is the expected return on High Flier's common stock?
a. 10.9 percent
b. 11.4 percent
c. 12.2 percent
d. 13.6 percent