The manufacturer of Crest toothpaste provides free samples of its toothpaste to dentists and encourages them to distribute these samples to their patients and to inform the patients about advantages of using Crest. The manufacturer of Crest toothpaste is using ________.
A) sales promotion
B) direct marketing
C) a push strategy
D) a pull strategy
E) a vertical diversification strategy
Answer: C) a push strategy