What heap operation does the following function implement?bool heapOperation (HEAP* heap, void** dataOutPtr){   if (heap->size == 0)      return false;   *dataOutPtr = heap->heapAry[0];   heap->heapAry[0] = heap->heapAry[heap->last];   (heap->last)--;   (heap->size)--;   _reheapDown (heap, 0);   return true;}

A. create heap
B. insert heap
C. destroy heap
D. delete heap

Answer: D