Which of these is true about telemarketing?
A) Its use is now limited to political campaigns and fundraising.
B) Its use is generally restricted to inbound telemarketing.
C) Its use has increased in all sectors, both for-profit and nonprofit.
D) It has lost much of its effectiveness in recent years in all markets.
E) It has lost much of its effectiveness in recent years, but its use in B-to-B marketing is increasing.