Answer:
D 36 is closer to 40 than to 20
Explanation:
The correct explanation is the one that is true. All except D are false statements.
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Additional comment
One of the "test-taking skills" that you need to learn is that multiple-choice answers that make false statements can be immediately rejected. (You don't even need to check to see if they answer the question.)
Of course, there are occasional questions that ask you to find the false statement on the list. In those cases, you reject the true ones.