Which part of the folowing code identifies a base case for recursion?

$//$ a method to calculate n factorial recursively

$//$ works with positive integers up to the limit of the int data type

$//12!$ is the limit for int data

static int factorial $($int n$)\{$

$$ if $($n $==1)$

$$ return $1$;

$$else

$$ return n $*$ factorial$($n$-1)$;

$\}//$ end factorial$()$

Group of answer choices

else return n $*$ factorial$($n$-1)$;

$//12!$ is the limit for int data

if $($n $==1)$ return $1$;

int i $=($n$-1)$;