Answer:
distributing proxies to holders of securities in margin account
Step-by-step explanation:
Proxies are voting materials on shares that are given by the issuer of the shares to the brokerage that is holding the shares.
Proxies are paid for by the issuer and not the customer.
A broker is allowed to charge for various services rendered. For trading and market related services the 5% rule holds, while for other clerical services such as collection of dividends, safe keeping appraisal of securities, and transfer of securites.
Charges must be fair and reasonable.