To which sets of real numbers does zero belong?
A. Whole numbers, integers, and rational numbers
B. Natural numbers, integers, and rational numbers
C. Natural numbers, integers, and irrational numbers
D. Whole numbers, integers, and irrational numbers
A. Whole numbers, integers, and rational numbers
The correct answer is A. Zero belongs to the set of whole numbers, integers, and rational numbers.
Whole numbers include all non-negative integers, including zero. Integers include all positive and negative whole numbers, as well as zero. Rational numbers include all numbers that can be expressed as a fraction, where the numerator and denominator are both integers and the denominator is not zero. Since zero can be expressed as 0/1, it is considered a rational number.