Math 6

Question Analysis
This question checks whether a number belongs to both the whole number set and the integer set.
The main focus is understanding the overlap between whole numbers and integers.

Key Concept Explanation
Whole numbers: {0, 1, 2, 3, 4, …} → only non-negative numbers
Integers: {..., –2, –1, 0, 1, 2, 3, …} → includes negatives and zero
The overlap is all non-negative integers

Step-by-Step Solution
A. –1 → Integer, not a whole number