Which of the Following Statements About Manufacturers' Agents Is True

Which of the following statements about manufacturers' agents is true?

A) Manufacturers' agents are also called manufacturers' brokers.
B) Manufacturers' agents most typically work for only one manufacturer.
C) Manufacturers' agents are compensated with commissions based on a percentage of what they sell.
D) Manufacturers' agents have unlimited sales territories.
E) Manufacturers' agents are entirely supervised by the manufacturer for whom they sell.