The outline of an essay should not include two to four main topic sentences. So option B is our correct answer.
An outline is a prioritized list of your essay's keypoints. You may guide the reader on a logical path from your thesis, via your supporting evidence, to your conclusion by clearly defining and organizing your topic and subtopics. The sentence that states the paragraph's primary idea is known as the "subject sentence."
It is without a doubt the paragraph's most crucial sentence. The subject sentence typically consists of two components: the controlling notion and the issue itself. The paragraph's subject is the topic. Hence, the outline of an essay should contain only the main ideas according to which we can create multiple topic sentences in form of paragraphs.