In a monopolistic competition market structure, individual firms have almost no pricing power

What should the close of a routine request include?

A) A sincere apology for the inconvenience caused B) An explanation or justification for the request C) The phrase "Thank you in advance" to ensure compliance D) Information about how you can be reached E) Questions that will help the organization of the message

American Express executives wish to know if there is a difference between the average dollar balance carried on credit cards between males and females. This is an example of:

A) summarizing B) generalizing C) comparing D) relating E) transforming