A major advantage of personal selling as a promotion tool is that ( ).
A.
it allows a seller to receive immediate feedback from the customers.
B.
it is cost effective when the target market is large and scattered.
C.
it is highly effective when selling to innovators.
D.
it is an unpaid form of nonpersonal communication.
E.
it works as an independent tool during mass selling, without the support of advertising or sales promotion.