Which of the following would be a good opening statement to make to a new prospect as you visit for the first time with him?

A. "Hi, my name is Keith. Could I demonstrate a couple of products to you?"
B. "Hi, my name is Keith. This is a nice office you have here."
C. "Hi, my name is Keith and I was hoping you would like to purchase my product."
D. "Hi, my name is Keith. Could I tell you about the products my company offers?"