Q$-$RECURSION$-$C$)$ Consider the following code fragment.$$

$13$ public static int example$($int x$,$ int y$)$

$14\{$

$15$if$($x $<=1)$

$16\{$

$17$ return y;

$18\}$

$19$else

$20\{$

$21$ return example$($x $-1,$ y$)*$ example$($x $-1,$ y$)$;

$22\}$

$23\}//$end example method

What is the base case for the example method?

Question $11$ options:

a$)$

return example$($x $-1,$ y$)*$ example$($x $-1,$ y$)$;

b$)$

if$($x $<=1)$ return y;

c$)$

public static int example$($int x$,$ int y$)$

d$)$

if$($y $<=1)$ return x;