12345678 Consider the following code: 1 public class Mystery{ private static int calculate (int n) { if (n==0) { return 1; }else{ return 1 + calculate (n/10); 6 9 96 10 11 12 } 13} } } public static void main(String[] args) { int result = Mystery.calculate (574322432); System.out.println(result); a. What is the output of this code? b. What line of code contains the base case? What line of code contains the recursive call? d. What would the result be in the base case were omitted? e. Rewrite the calculate method so it uses iteration instead of recursion.