Which equation illustrates the associative property of addition
5 + (6 + 2) = (6 + 2) + 5
5 + (6 + 2) = (5 + 6) + 2
5 + (6 + 2) = 5 + (2 + 6)
5 + (6 + 2) = 5 + (6 + 2)