YouTrade, an Online Broker, Purchases a 60-Second Television Commercial to Be

YouTrade, an online broker, purchases a 60-second television commercial to be telecast during the Major League playoffs and the World Series.The commercial touts the reliability of YouTrade's advice, expertise, and personal attention in assisting Internet customers with stock portfolio creation and management.The spot created by YouTrade is

A) not an advertisement since it does not involve a product.
B) a promotion aimed at a trade channel.
C) an unpaid public service announcement.
D) an advertisement promoting a service.