10. What is output by the following program? public static int a(int x) public static int b(int x) ( ublic static int c(int x) { ublic static void main(String[] arg return b(x) c(x) b(2 * x) return x + 1; return x + x + x; System.out.println(c()) System.out.println(b(e)); System.out.println(a (0)); System.out.println(c(3)); System.out.println(b(3)); System.out.println(a(3))