Which of the following sentences are to build goodwill and induce the reader to take an action in a response letter?
A.
We are convinced that you won't miss the opportunity of joining us at the seminar, and look forward to meeting you there.
B.
I am looking forward to the pleasure of receiving your first order.
C.
If you have any other questions, don’t hesitate to contact us. We are at your service all the time.
D.
Thank you very much for your interest in our business.