Given that

int sum$\_$element$($int i$,$ int mat$1[][$M$],$

int j$,$ int mat$2[][$N$])\{$

return mat$1[$i$][$j$]+$ mat$2[$j$][$i$]$;

$\}$

compiles as

movslq $\%$edi, $\%$rdi

movslq $\%$edx, $\%$rdx

leaq $(\%$rdi,$\%$rdi,$2),\%$rax

leaq $(\%$rsi,$\%$rax,$4),\%$rax

movl $(\%$rax,$\%$rdx$,4),\%$eax

leaq $(\%$rdx$,\%$rdx$,4),\%$rsi

leaq $(\%$rcx$,\%$rsi,$4),\%$rcx

addl $(\%$rcx$,\%$rdi,$4),\%$eax

ret

then what are the values of the constants M and N among the following possibilities