If you implement a stack using a linked list, this pseudocode:

function g()
if(top==NULL)
return top-next

Question

If you implement a stack using a linked list, this pseudocode:  
 
 function g()  
       if(top==NULL)  
             return top->next

Answer

corresponds to the pop operation

Answer

corresponds to the peek operation

Answer

corresponds to the push operation

Answer

none of the other answers

Answer

that is not a stack operation

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