The correct answer is B: Dr. Mia Crawford, a board-certified cardiologist with 16 years of experience, has some strong opinions about the American diet.
When an author makes an appeal to ethos, he or she uses an authority to persuade the audience. For example, if I want to argue that a particular sneaker is the best one to use for running, a good appeal to ethos will use the authority of a successful track and field runner or an athlete. That's because a successful athlete, and not a chef or musician, will likely know which sneaker is the best for running.
Here, "a board-certified cardiologist with 16 years of experience" certainly has the authority to speak knowledgeably on the subject of a healthy diet. That's why B is the best answer.
The correct answer is B. Dr. Mia Crawford, a board-certified cardiologist with 16 years of experience, has some strong opinions about the American diet.
Explanation:
The appeal to ethos focuses on the credibility or authority of the speaker, this includes his/her education, expertise or experience. This implies in this appeal the speaker does not provide evidence that supports a claim but relies on who she/he is to convince the audience they should believe his/her words. An example of this is "Dr. Mia Crawford, a board-certified cardiologist with 16 years of experience, has some strong opinions about the American diet" because in this case the speaker focuses on showing Dr. Mia Crawford is credible and therefore the audience should accept what she says because she is a certified cardiologist with broad experience.
