The correct statement about the relationships between the number sets is:
Whole numbers include all natural numbers and 0.
Here's a brief explanation of the other responses:
- Not all natural numbers are real numbers. (False: all natural numbers are indeed real numbers)
- Some irrational numbers are also integers. (False: irrational numbers cannot be integers)
- All rational numbers are also integers. (False: while all integers are rational numbers, not all rational numbers are integers)
So, the only true statement is regarding whole numbers.