Answer: holla! The question you provided is not complete, but, let me explain one or two things in order to be able to solve this kind of question.
Explanation:
''...To persuade my fellow students of the benefits of a healthy diet and aerobic exercise the phrase the benefits of a healthy diet and aerobic exercise...''.
The statement above is what is called the specific purpose statement. Specific purpose statement can be declarative, informative or it can be persuasive.
A specific purpose statement is based on a central idea. For instance in the above statement in the question the Central idea there is;
==> Educating students/young people on Balanced diet and its importance. Also, the health benefits of physical fitness or exercise.
One of the things to research In order to give a great specific purpose statement is your audience. You must know your audience, for instance, the audience in the question are students/young people.
Answer: It would not be a good idea to swim keeping in mind that I have never swum this far and that I am somewhat tired.
Explanation: A person who knows that he has not swum that far and is tired at the same time would not be a good idea to try to swim. Many people have drowned trying to swim at distances they have not done before and it is dangerous to do so if, above that, it feels tired.
Body image in advertising can affect people's perceptions of themselves. If they see a skinny person, they may think they are too fat and start unhealthy dieting or eating habits. If they see someone more fit or "hot", they may assume they aren't beautiful and attempt things such as "butt enhancers" or even plastic surgery.
I think the answer is A because of the temperature change on the area