Question: If a sequence of numbers 2, 6, 7, 13, 5, 4, 20 is added to a stack, in the order given, which number will be

If a sequence of numbers 2, 6, 7, 13, 5, 4, 20 is added to a stack, in the order given, which number will be the last number to be removed from the stack?

A) 4 B) 6 C) 20 D) 2

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