Which detail BEST supports the central idea of this text? A) Windows may have different ways of retaining energy. B) Repairing air leaks can reduce costs and energy usage. C) Fireplaces are an important source of energy in homes. D) Checking energy efficiency can also reduce fire hazards.

B) Repairing air leaks can reduce costs and energy usage.

Explanation:

Central idea is also known as the main idea. Definition: The central idea (main idea) in a piece of writing is the point that the author wants you to remember most. Some writers may state the main idea, but it is often implied, which means the reader has to make inferences (what the text says + what I know) about it.

B) Repairing air leaks can reduce costs and energy usage.

Explanation:

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