Help me please for number 3

Answer: D
Step-by-step explanation:
I have done it before and got it right
Answer:
D.) All positive numbers
Step-by-step explanation:
Natural numbers include all the whole numbers except the number 0.
Natural numbers are from one to infinity
1, 2, 3, 4, 5, 6, 7, 8, 9, 10.....∞
Hope this helps!! <3