Select the statements that are true about sets. Select all that apply.

Sets can contain the same element multiple times

{6, 9, 12} {3, 6, 9, 12, 15}

If set A is a subset of set B, then A B = A and A B = B

{0, 1, 2, 2, 3} is a valid set

The set {0, 1, 2} is different than the set {2, 1, 0}

{1, 2, 3} {3, 4, 5} = {3}

{7, 8, 9} {6, 8, 10} = {8}