Required: Use the approximate yield formula to compute the rate of return on the investmentin Part A and B, respectively.Show your computations to receive partial credit. For dollaramount, keep two decimal places. For the approximate yields,express them as percentageswith three decimal places. a) Patty purchased 500 shares of a no-load mutual fund at a net asset value (NAV) of $170per share. During the year, Patty received dividend income distributions of $9 per shareand capital gains distributions of$18.20 per share.At the end of the year, the shares hada NAV of $160 per share. b)Fargo Growth Fund is a load fund.A year ago, it was being quoted at a NAV of $66.50and an offer price of $72.80; today, it's being quoted at a NAV of $68.36 and an offerprice of $74.06.Use the approximate yield formular to calculate the rate of return on thisload fund. The dividends and capital gains distributions over the two-year period aretotaled at $9.20 per share. c)Identify and explain at least THREE types of costs that should be taken into considerations when evaluating the return on investment in mutual funds. (5 marks)