Zero belongs to the following sets of real numbers:
- Whole numbers
- Integers
- Rational numbers
Thus, the correct response is:
whole numbers, integers, and rational numbers.
Zero is not a natural number, as natural numbers are typically defined as the set of positive integers (1, 2, 3, ...). Additionally, zero is not an irrational number, as irrational numbers cannot be expressed as the quotient of two integers.