1.

{1, 2, , 3, 4, 6, 7, 9?

A. {2, 1, 4, 3, 7, 9, 6}
B. {9, 7, 6, 4, 3, 1, 2}
C. None of the mentioned
Answer» B. {9, 7, 6, 4, 3, 1, 2}


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