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