0.5. 1. (20 points) A. A stock obeys the Black-Scholes model with a = ..07,8 = .03, and g = Calculate the following expectation if S(0) = 15 E [(s(1)5(2)${3)) '1 0.5. 1. (20 points) A. A stock obeys the Black-Scholes model with a = ..07,8 = .03, and g = Calculate the following expectation if S(0) = 15 E [(s(1)5(2)${3)) '1