Suppose you work as an investment portfolio manager in a mutual fund company in Oman and you are given a task to calculate the portfolio risk that secures 0.142 return by using the information below. Return on Muscat Security Market index 18 %, Return on short term government bonds in Oman 6.5%, and total risk on the investment in Muscat Security Market 7%. Select one: Oa. All the given answers in this question are wrong O b. 0.0864 O c. 0.0300 O d. 0.0469