Question

which rhetorical appeal is primarily used in this ad? the brand more dental professionals recommend dentafresh dentafresh toothpaste ethos (character) logos (reason) pathos (emotion)

Explanation:

The ad mentions "the brand more dental professionals recommend." It appeals to the credibility and trust - worthiness associated with dental professionals. Ethos is an appeal to ethics or the character of the speaker/endorser. Here, the authority of dental professionals is used to persuade consumers.

Answer:

ethos (character)