Full-service brokerage firms a. have lower commissions. c. provide no investment advice. b. offer portfolio management. d. teach you how to do market research.

Full-service brokerage firms offer portfolio management. What brokerage firms are is a licensed financial broker-dealer firm that provides assistance to its clients when it comes to investing, taxes, and etc. What full-service brokerage firms especially do is help a client with managing their portfolio. What this means is that they assist and teach their clients on how to be responsible in making investments decisions and carry out investment activities that is business for themselves or for a institution. If a person doesn't know how to properly manage their portfolio, they will be unsuccessful. Therefore, brokerage firms make sure to offer portfolio management so that their clients could be successful and not worry about getting off track and start to fail in investing.

a and c?

i think it is a and c

a. poison gas was sprayed over battlefields by airplanes to weaken enemy positions before major attacks.