Question 4 1 pts Which of the following is the correct way to find and return the middle of two numbers from the method listed below? public static double middle(int x, int y) { return (x + y) / 2.0; public static double middle(int x, int y) { return avg; double avg = (x + y) / 2.0; public static double middle(int x, int y) { double avg = (x + y) / 2.0; return; public static double middle(int x, int y) { return = (x + y) / 2.0