In the following code, the variable indentAmt $\_\_\_\_\_$ at each recursive call.

public static int sum$($int n$,$ String indentAmt$)\{$

int sum $=0$;

if $($n $==0)\{$

System.out.println$($indentAmt $+$ "your value is: $"+$ n$)$;

return $0$;

$\}$

else $\{$

System.out.println$($indentAmt $+$ "your value is: $"+$ n$)$;

sum $=$ n $+$ sum$($n $-1,$ indentAmt $+"")$;

$\}$

System.out.println$($indentAmt $+$ "Returning pos $="+$ n$)$;

return sum;

$\}$

Group of answer choices

remains constant

is incremented

is incremented or decremented based on the call

is decremented