Which of the following statements about a paragraph's topic sentence is true?
A. It summarizes the main idea of the paragraph.
B. It should be as detailed as possible.
C. It summarizes the main idea of the essay.
D. It should be as general as possible.
A topic sentence is the main idea or point of a paragraph. It serves as a guide to the reader, telling them what the paragraph is going to be about. A topic sentence should be clear, concise, and focused on a single idea, and it should summarize the main point of the paragraph. Therefore, the correct answer is A.
Therefore, the Correct Answer is A.