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Which of the following is the WHOLE NUMBER that is closest to 0 but is NOT a natural number?

A−1
B0
C1
D1/2
Answer & Solution
Correct answer: B. 0
Natural numbers are 1, 2, 3, … (positive integers). Whole numbers are 0, 1, 2, 3, … (non-negative integers). So 0 is a whole number that is NOT a natural number. −1 is an integer but not a whole number (whole numbers are ≥ 0) 1/2 is rational but not a whole number 1 is both.
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