For You as a Salesperson to Find an Optimal Prospecting

For you as a salesperson to find an optimal prospecting method,the text suggests you do all the following EXCEPT:

A) always call back on prospects who did not buy.
B) copy the prospecting methods of successful salespeople.
C) concentrate on high-potential customers before low-potential customers.
D) contact all prospects and current customers when you have a new product.
E) customize a prospecting method that suits the needs of your individual firm.