Manufacturers' sales branches:
A) have very low sales per branch.
B) are mainly used in weak market areas, where there is not enough business for other types of wholesalers.
C) operating costs would be even lower than they are now if manufacturers didn't "charge" them with extra expenses.
D) handle over 26.3 percent of all wholesale sales.
E) serve the same basic needs as do brokers.
Answer: D