c++ multiple choice

7. How many parameters are there in a binary operator implemented as a friend? 2 0 As many as you need 1 8. The copy instructor for a class is called All of these When an object of the classes pass by value to a function When an object of the class is initialize buy another object of the class When a function returns an object of the class 9. Operators can be overloaded as .... All of these When an object of the classes pass by value to a function When an object of the class is initialized by another object of the class when a function returns an object of the class