Which of the Following Is Most Likely True About Proof

Multiple Choice

Which of the following is most likely true about proof statements?

A) Survey results from magazines are invalid proof statements.
B) Proof statements can substantiate a salesperson's product claims.
C) Past sales records are weak proof statements and infrequently used.
D) Company proof results are the most credible type of proof statements.
E) Proof statements encourage two-way communication with customers.