Answer:
A. independent clause + independent clause
Explanation:
That would be a compound sentence.
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⭐️The answer is⭐️
Think of the main idea as an —umbrella“ idea. It is the author's primary point about a topic. All other material in the paragraph fits under the main idea. In a paragraph, authors often present the main idea to readers in a single sentence called the topic sentence.
The middle one is the right answer.
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