Which set of numbers are all integers? *
O-2, -1, 0, 1, 2
O 1/2, 3/4, 5/6, 7/8
O 1.2, 2.3, 3.4, 4.5, 4.6
O 0, 0.1, 0.2, 0.3, 0.4, 0.5