11.The following question illustrates the APT. Imagine that there are only two macroeconomic factors. Investments X,Y, and Z have the following sensitivities to these two factors: We assume that the factor price (expected risk premium) is 4 percent on factor 1 and 8 percent on factor 2. Treasury bills obviously offer zero risk premium. 2 a. According to the APT, what is the risk premium (on each of the three stocks? b. Suppose you buy $200 of X and $50 of Y and sell $150 of Z. What is the sensitivity of your portfolio to each of the two factors (factor loading)? What is the expected risk premium