Services Often Invite Performance and Pricing Abuses for Which of the Following

Multiple Choice

Services often invite performance and pricing abuses for which of the following reasons?

A) Customers may not be present when the work is being performed.
B) Customers may not have the technical skills necessary to evaluate performance.
C) Quality and benefits may be difficult to evaluate even after delivery.
D) Customers may not be able to assess the amount, if any, of work done.
E) All of the above