me following options for investment are available and we want to know which one is the best one for investment from a rational risk-averse investor point of view if we just have information regarding variance of (expected) return and expected return of each? expected return Oil company stock real estate Gold Oil company stock Due to higher return Oil company stock Due to lower risk per a unit of return Gold Due to lower variance Real Estate Due to lower risk per a unit of return Variance 237.16 39.69 23.04 11% 7% 4% 13 Question 5 o