C. <span>Every person should make it a priority to serve at least two hours per week.
This does not give any information on service. It is just the opinion of the author and what he/she believes is a minimum amount of time that should be served by a citzien. Hope this helps :)</span>
Every person should make it a priority to serve at least two hours per week.
Explanation:
This is the sentence that is not objective and not a crucial detail from the article. In this article, the author provides a lot of information about service. He explains what service is, how it benefits people, and why service is important. However, this sentence only provides a subjective view of service (how many hours are necessary) and does not provide facts about service.
B. There is no single topic sentence. It starts with an idea and just keeps flowing. A topic sentence will introduce the point in why the are talking about earth's plates.