You are holding a share that is expected to earn 35% in a booming economy, 15% in a normal economy, and lose 25 % in a recessionary economy. There is a 10 % probability of a boom and a 65 % chance of a normal economy. What is your expected rate of return on this share?

a. 8.5%

b. 25%

c. 7%

d. 19.5%