To Be Effective as a Proof Provider, Which of the Following

Multiple Choice

To be effective as a proof provider, which of the following criteria must testimonials meet?

A) They must be perceived as being sincere and without bias.
B) They must be matched according to relevance to the prospective buyer, and the source must be recognized and highly respected.
C) They must be granted without undue pressure or promise of material gain.
D) They must be provided by an organization seen as a leader within its industry.