Answer:2
Step-by-step explanation:
Counting/Natural Number System is counting nymbers so counting on your fingers you strat with 1, then 2,3,4,5,6,7,8, etc. you dont say 1/2 or -3 7 but 0 is sometimes considered a whole number but we never start with 0 so the only number choices i see that is in the Counting/Natural Number System is 2 hope this helps!
