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A topic sentence is:
A. The sentence that introduces the paragraph's main idea.
Here's why:
1. A topic sentence acts as a roadmap for the paragraph, letting the reader know what the paragraph is going to be about.
2. It typically appears at the beginning of the paragraph to provide a clear focus and guide the reader on what to expect.
3. It is essential for organizing the paragraph and ensuring that all the supporting details relate back to the main idea presented in the topic sentence.
Remember, a strong topic sentence sets the tone for the paragraph and helps the reader understand the point being made. If you have any more questions or need further clarification, feel free to ask!
