Note: choice b was selected but not necessarily the right answer

Please provide explanation to the correct answer if you can.

We have Function callee is called by caller as below left and there assembly code on the right: caLLer: push mov sub mov mov mov mov mov mov %eax , %edi call 0x4004d6 mov %eax,-0x4(Xrbp) shll $0x2,-0x4C%rbp) nop leaveq retq %rbp %rsp , %rbp $0x18,%rsp %edi,-0x14(%rbp) %esi ,-0x18(%rbp) -0x18(Xrbp),%edx -0x14(Xrbp), %eax %edx, %esi void caller(int x, int y) int z; callee(x,y); z = return; int callee(int x, int callee: push %rbp mov %rsp, %rbp mov %edi ,-0x40%rbp) mov %esi ,-0x8(Xrbp) mov -0x40%rbp) ,%eax cmp -0x8(Xrbp) ,%eax jle x4004ed mov -0x4(%rbp), %eax jmp Ox4004f0 mov -0x8(Xrbp), %eax pop %rbp retq if (x>y) return x; eLse return y