Robert Is a Computer Salesman

Robert is a computer salesman.On receiving a stalling objection from one of his clients,he used the probability close.The prospect responded,"I am not sure,maybe you have a 20% chance of making the sale if you come after a week." What action needs to be taken by Robert if he should have a chance of making the sale?

A) Summarize the major selling points again and try a close.
B) Use the standing-room-only close to persuade the prospect.
C) Return to square one and start the selling process again.
D) Keep calling on the customer till the probability increases.
E) Use a trial close to find out the real problem.