please answer the question
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A and D
Step-by-step explanation:
A: 2, 2 + 2, 4 + 2, 6 + 4
A is not AP
B: 0, 0 - 4, -4 - 4, -8 - 4
B is AP
C: 3, 3 - 2, 1 - 2, -1 - 2
C is AP
D: 1, 1 + 2, 3 + 6, 9 + 18
D is not AP
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