An ad that says, "doctors agree that " is making an appeal to the consumer on the basis of _ _.
a. emotional feeling
c. testimonials
b. fine print
d. vague claims

An ad that says, "Doctors agree that " is making an appeal to the consumer on the basis of "vague claims," since it is generalizing an entire community of doctors, when in fact it is highly unlikely that every doctor agrees on whatever is being stated.