What will the value of the variable output be after executing the following code?

function $[$out$]=$ my$\_$io$\_$function $(a,b)$

out $=0$;

if $a>5$

out $=a$;

else

out $=b$;

output $=a+b$;

end

end

$a=1$;

$b=11$;

output $=$ my$\_10\_$function $(a,b)$;

A$)$ Matlab throws an error with the message: Output argument "output" $($and maybe others$)$ not assigned during call to $"$my io function"

B$)1$

C$)11$

D$)12$

E$)0$