Which of the following statements about the open-end mutual funds are true? I. Investors buy shares from and sell shares back to the mutual funds. II. Fund shareholders can trade between themselves. III. Fund shareholders can redeem their shares at the fund's net asset value (NAV). IV. There is no limit to the number of shares that the fund can issue. V. Fund shareholders can earn the rate of turn promised in the prospectus. Select one: O a. I, II and 111 ob. III and IV c. IT, III and IV Od. I, III, and IV Oe. All of them