The answer is B.ethos.
Let's first look into the options:
Ethos- appeal to ethics.
By using ethos, the people use authority or credibility to peesuade people.
Pathos- appeal to emotions
By using pathos, people use audience’s sympathy or empathy to persuade them, such as using stories and photos to stimulate emotions.
Logos- appeal to logic
By using facts and figures, people are persuaded to believe the reason.
In this case, ethos is used as dentists are authorities.
Hope it helps!
start with a thesis statement on the topic. then put three topic sentences on that thesis in the first paragraph. your body paragraphs will be about each topic. then you final paraggraph restates the thesis and the topics.
People complain when there is too much sun and it gets unbearably hot, and when it rains too much or when it is cold. But, no one complains about the moon shines. Everyone becomes happy and appreciates the moon in their own special way.
I believe it's A....but I've never heard of B or D but if those two where a chose I'd chose B then....hope that helps