If the following methods are declared in a class, which of them fail to compile because of overloading rules?int multiplication$($int a$,$ int b$)//1$float multiplication$($float a$,$ int b$)//2$float multiplication$($int a$,$ float b$)//3$void multiplication$($float a$)//4$int multiplication$($int a$)//5$void multiplication$($int b$)//6$