Question: please use basic data structure rules . not advanced . thanks Five items: A, B, C, D, and E are pushed into a stack, one

 please use basic data structure rules . not advanced . thanks

please use basic data structure rules . not advanced . thanks

Five items: A, B, C, D, and E are pushed into a stack, one after the other, starting from A. The stack is popped four times, and each time, the popped element is inserted into a queue. Two elements are deleted from the queue and are pushed back on the stack. Now, one element is popped from the stack. Which element is popped

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