Answer:
The correct answer is option C. To summarize the main point of the paragraph
Explanation:
A topic sentence is the most important part of a paragraph. The main purpose of a topic sentence is to provide a concise statement that reflects the purpose of the paragraph or the information that is going to be provided in the paragraph effectively.
It is usually the first sentence of a paragraph and becomes the opening statement of a paragraph in formal writings.
I hope the answer is helpful.