The number 0 fits into the following subsets:
- Rational: Yes, because it can be expressed as 0/1 (or any non-zero denominator).
- Integer: Yes, because 0 is an integer.
- Whole: Yes, because whole numbers include all non-negative integers, which includes 0.
- Natural: Typically, natural numbers do not include 0 (they start from 1), but some definitions do allow for 0.
Given the options, the smallest subset that includes 0 is:
Natural: (However, note that this may vary with interpretation; if not considered, then...) Whole:
So, if natural numbers are defined to not include 0 in your context, the smallest subset would be:
Whole.
If natural numbers are defined to include 0, then it depends on your interpretation from the options.