} 2. (14 p.) Consider the following recursive method: public static int example (int number) { if (number == 0) return 0; return number + example (number + 2); (a) What is the base case of this method? (b) What is the recursive case of this method? (c) What (if any) is the constraint on the value that can be passed as an argument for this method? (d) is example (0) a valid call? If so what is the returned value? (e) Is example (8) a valid call? If so what is the returned value? (f) Is example (-3) a valid call? If so what is the returned value? (g) Is example (-8) a valid call? If so what is the returned value?