fast answer please

Question 20 Consider the following recursive function. What is the output for test(7.5)? public static int test (int a, int n) { if(a % 3 == 0) return a + n; else if(a % 3 == 1) return a + test(a + 1, n - 1); else return a test(a + 1, n - 1); } Your answer: 0 1 O 2 O-2 O 3 0 0