The correct answer is C. A paragraph that revolves around a main idea
Step-by-step explanation:
A topical paragraph is a kind of paragraph or group of sentences that form a unit and focuses on a main idea or topic, this means these type of paragraphs do not need other paragraphs to develop a complete idea or though and are different from other paragraphs as they do not complement the ideas on other paragraphs but state and develop one main idea on a text. Additionally, topical paragraphs are composed by a topic sentence which expresses what the paragraph is about, a set of supporting sentences that explain the topic sentence and a closing sentence that closes the topic in the paragraph and connects the next paragraph. Considering this, it can be concluded a topical paragraph is mainly a paragraph that revolves around a min idea as this type of paragraphs covers and develops a main idea in a text.