$1.$ What would the browser display if the following code were executed in a script?

$$

var x $=11$;

var y $=14$;$$

$$

if $($ x $>13)$

$$ if $($ y $>13)$

$$ document.writeln$("$x and y are $>13")$;

else

$$ document.writeln$("$x is $<=13")$;

$$

a$)$ nothing

b$)11$

c$)$ x and y are $>13$

d$)$ x is $<=13$