1. A stack S of integers initially contains the following data: 6 (top) 2 7 3 The following code is then executed:

   int x = S.pop();

   int y = S.pop();

   int z = S.pop();

   S.push(x + y);

   int w = S.pop();

   S.push(w + z);

   After this code has been executed, what are the contents of the stack?

   	A.	8 10
   	B.	10 8
   	C.	15 3
   	D.	10 8 6 3