Which of the following is a principal generally required to pay for?

A) Undertakings that she did not request
B) Services to which she did not consent
C) A gratuitous agent
D) Services performed by an agent which are generally compensated but for which the amount of compensation is not expressly stated

In some cases,the relationship of the parties and the surrounding circumstances determine whether and in what amount the agent is to be compensated.Where compensation is due but the amount is not expressly stated,the amount is the market price or the customary price for the agent's services or,if neither is available,their reasonable value.A principal is not generally required to pay for undertakings that she did not request,services to which she did not consent,and tasks that are typically undertaken without pay.