The file "baz.m$"$ contains the following code:

function $b=$baz$(a)$

$b=x^{{?}^{{?}^{?}}}2+a$;

end

If the following lines of code are executed in the command window:

$x=9$;

$y=$baz$(19)$;

disp$(x)$;

what will be the result?

the value $"100"$ will be displayed

the value $"19"$ will be displayed

the value $"9"$ will be displayed

an error will be reported

the result cannot be determined from the code shown