Consider the following performance data for two portfolio managers (A and B) and a common benchmark portfolio BENCHMARK MANAGER A MANAGER B Weight Return Weight Return WeightReturn Stocks 0.6 -5.0% 4.0% 0.3 -5.0% 0.5 -3.5 3.5 0.3 2.5 Bonds 0.2 0.4 Cash 0.1 0.3 0.3 0.3 0.3 0.3 a) Calculate the overall return of the benchmark portfolio, the overall return to Manager's A actual portfolio, and the overall return to Manager's B actual portfolio (40 marks) b) riefly comment on whether these managers have under- or outperformed the benchmark fund (20 marks) c) Using attribution analysis, calculate the selection effect for Manager A, and the allocation effect for Manager B. Using these numbers in conjunction with your results from part a), comment on whether these managers have added value through their selection skills, their allocation skills, or both