Answer questions 4 and 5 based upon the following information: Assume there are three future states of the economy. The expected returns on two projects, A and B, in each state are given below along with the probability of each state. Recession Stable Boom 20% 60% 20% 10% 15% 20% 10% 20% 30% Q4. The expected return on Project A is closest to b. d. Q5. 12%. 13%. 14%. 15%. The standard deviation of returns for Project B is closest to a. b. c. d. 6.3%. 7.5%. 8.2%. 9.6%