I believe it's C ..... I think
Answer:
Description of the types of food
Explanation:
The author is trying to make the readers comprehend the types of food we have by describing them and expounding on how effective or good the types of foods are for the brain by their description.
Answer: C. a humorous essay on the behavior of patients.
A physician that wants to inform another physician about an operation she performed have several ways to do it: she can write a letter, write an e-mail, or even a report in the patient's chart, <em>but writing a humorous essay on the behavior of patients wouldn't be correct, professional or ethical, therefore appropriate for this purpose.</em>
