Answer:
The three are career options in the investment field but the difference is the amount of services they offer.
Step-by-step explanation:
-A full-service brokerage firm provides many services to its clients like helping with financial planning, managing portfolios and executing trades while also assisting with tax and estate planning.
-A discount brokerage firm is a stockbroker that helps to buy and sell orders for its clients but it doesn't provide consulting services for them.
-A portfolio manager is a person that takes care of investing activities and decisions for its clients in a fund.