A year ago, an investor bought shares of a mutual fund at $ per share. This year, the fund has paid dividends of per share and had a capital gains distribution of $ per share. a. Find the investor's holding period return, given that this no-load fund now has a net asset value of $. b. Find the holding period return, assuming all the dividends and capital gains distributions are reinvested into additional shares of the fund at an average price of $ per share