Open-end mutual funds that charge a front-end sales charge may offer breakpoint discounts for larger purchases. A breakpoint is a reduced sales charge percentage that applies when the investor’s purchase reaches a specified dollar threshold. This is most commonly associated with Class A mutual fund shares, where the investor pays a sales charge at the time of purchase. Choice C is correct. A 12b-1 fee is an ongoing distribution or marketing fee charged against fund assets, not a volume-discounted purchase charge. Management fees compensate the investment adviser for managing the fund portfolio and are not reduced through purchase breakpoints in the same manner. A contingent deferred sales charge is a back-end charge that may decline over time based on how long shares are held, not primarily based on large-volume purchases at the time of investment. The SIE outline specifically lists open-end funds, loads, share classes, sales charges, breakpoints, rights of accumulation, and letters of intent. This question tests the connection between Class A shares, front-end loads, and breakpoint discounts. Reference: Section 2.1.4 Packaged Products; FINRA Rule 2342 Breakpoint Sales.