Programming exercise 3-1 suppose that you have created a program with only the following variables. int x = 2; int y = 3; suppose that you also have a method with the following header: public static void mathmethod(int x) which of the following method calls are legal? a. mathmethod(x); b. mathmethod(y); c. mathmethod(x, y); d. mathmethod(x + y); e. mathmethod(12l); f. mathmethod(12); g. mathmethod(12.2); h. mathmethod(); i. mathmethod(a); j. mathmethod(a / x);