A pension portfolio manager is about to upgrade his performance calculation surtware Currently, his performance software will only calculate his performance on a quarterly basis. The quarterly performance numbers calculated on a money-weigh ted rate-of-return basis for the year 2017 are shown below. The portfolio benchmark has annual return of 4.2 percent and the market index has a return of 3.4 percent. RETURN 5.35% QUATER 1 -2.34% 2 4.62% 3 1.25% 4 What is the return due to the portfolio manager's style Select one: a. 0.80% Ob -0.46% C. 2.03% O d. 1.85%