Which String Is Output by the Last Line of the Following

Multiple Choice

Which string is output by the last line of the following instruction set?
My_stack.push("Last to arrive ") ;
My_stack.push("first to leave ") ;
My_stack.pop() ;
Cout << my_stack.top() << endl;

A) Last to arrive
B) Last to arrive first to leave
C) first to leave Last to arrive
D) first to leave