A Marketing Firm Is Trying to Sell a New Product

A marketing firm is trying to sell a new product designed to improve memory.They hire a famous athlete to sell their product,because research shows people are more likely to buy a product endorsed by someone famous.Scientists are less likely to fall into this trap because scientists

A) prefer to believe their own authority figures.
B) insist on endorsement by at least two authority figures.
C) wait to see what the general public thinks before supporting the claims.
D) evaluate the claim themselves and insist on a certain standard of evidence.