Manufacturer's Provide Sales Training for Their Dealer's Sales Force for All

Manufacturer's provide sales training for their dealer's sales force for all but one of the following reasons:

A) It encourages the retail clerk to push the product because the clerk knows about it and how to do.
B) It increases customer satisfaction with the manufacturer's product if the sales has been made by someone who really knows about the item.
C) The dealer is more likely to buy from a manufacture that provides such sales support.
D) Such training costs relatively little.
E) None of these.