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A) 3, 4, 9; 5, 7, 8; 1, 2, 6
B) 1, 5, 6; 2, 4, 8:3, 7, 9
C) 4, 6, 8; 3, 5, 7; 1, 2, 9
D) 1, 2, 7; 3, 5, 9; 4, 6, 8
Correct Answer: D
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