Answer:
B.
Step-by-step explanation:
The Municipal Securities Rulemaking Board, (MSRB) is responsible for creating all the rules and policies for investment firms and banks. Under these rules, they state that the relationship must be disclosed to customers in writing no later than at confirmation of that sale. This is so that both the buyer and seller are in agreement with all the fine details before finalizing the deal and transferring the security or cash and are not met with undisclosed terms.