Which of the following statements, if any, represent a principal’s duty to an agent who works on a commission basis?

a) The principal is required to maintain pertinent records and pay the agent according to the terms of their agreement.
b) The principal is required to reimburse the agent for all authorized expenses incurred unless the agreement calls for the agent to pay expenses out of the commission.
c) Both a) and b).
d) None of the above.