In Some Industries, Personal Selling Accounts for Most of the Promotional

In some industries, personal selling accounts for most of the promotional budget. This is true because:

A) it has a wider reach than the mass media.
B) it is not as expensive as other forms of communication.
C) the average cost per sales call has decreased since 1980.
D) the cost per sales call is lesser than the cost per message through other media.
E) one sales call is not likely to be enough to close a deal.