Answer:
c. integers
Step-by-step explanation:
Examples of each one
a.) only positive numbers: 1, 2, 3
b.) #'s that can not represented a simple fraction: π,√
c.) negative # (-1, -2, -3), zero (0), and positive # (1,2,3)
d.) # that can be written as a fraction: 1/2, 1.5, 2/3
