Final answer:
A broker acts as an intermediary and has autonomy in how they achieve desired outcomes for their clients.
Step-by-step explanation:
The question pertains to a concept in business law where an individual acts as an intermediary between parties. This person is responsible for arranging dealings or transactions but is not controlled in the methods that they use to achieve the desired results. The correct answer to the question is B. Broker. A broker matches parties for transactions, much like a bank serves as a financial intermediary between savers and borrowers. Brokers have some independence in how they accomplish their goals but are obligated to act in their clients' best interests.