answer quick please

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: O 0 2 O -2 O 3 0 1