The Major Difference Between Telemarketing and Telesales Is

The major difference between telemarketing and telesales is:

A) telemarketing covers a broad range of marketing activities while telesales is primarily an order taking mechanism.
B) telemarketing can be inbound or outbound while telesales is generally outbound.
C) telesales calls are routinely made to existing customers whereas most telemarketing involves cold calls.
D) telemarketing is typically associated with mass media advertising while telesales uses direct media such as the telephone.
E) all of the above