Which of the following statements are true in describing the features of MMMFs? (Check all that apply.) \

A. They charge investors fees for purchasing or redeeming shares, but they don't require a minimum initial investment.

B. They are openend investment funds that can invest in money market or capital market securities.

C. They often do not charge a fee for writing checks or have any minimum check amount as long as the balance in the account is above a stated level.

D. The funds' yields depend entirely on the performance of the securities purchased.