The operator function will be implemented as __, if obj1 drive the - operator whereas obj2 is passed as arguments to - operator in the statement given below. obj3 = obj1 - obj2;?

(A) Member function
(B) Non-member function
(C) Friend function
(D) None of the given options

The operator function will be implemented as __, if obj1 drive the – operator whereas obj2 is passed as arguments to – operator in the statement given below. obj3 = obj1 – obj2;?