You Have Just Returned from an Interview with a Company

Multiple Choice

You have just returned from an interview with a company and are considering the appropriateness of a thank-you letter or note. The thank-you message:

A) is not necessary if you thanked the interviewer in person after the interview.
B) should be sent promptly in order to be effective.
C) is best sent a few weeks if you have not received a response from the company.
D) should include a reminder that the application for a certain job is on file.