Answer:
The correct answer is letter "A": selling enough mutual funds to a customer to obtain a breakpoint.
Step-by-step explanation:
The Financial Industry Regulatory Authority (FINRA) is a non-governmental institution that rules brokers and dealers activities in the United States. FINRA aims to protect private investments from bad practices and fraud having the authority to impose penalties whenever necessary.
Brokers can send different assets -such a mutual funds or stocks- on behalf of investors to come to a breakpoint and start generating profits from the trade.