Question 2 1 pts Given the start of a class declaration class foo public: void x (foo f: void y (foor const; Which of the two functions can alter the PRIVATE member variables of the foo object (object of type foo) that activates the function Only alter the private member variables of the object that activates the function Only ycan alter the private member variables of the object that activates the function Bothxand y can alter the private member variables of the object that activates the function Neither x nor y can alter the private member variables of the object that activates the function D Question 3 1 pts Is it possible for a member function of adass to activate another member function of the same class? No Yes, but only public member functions Yes, but only private member functions Yes, both public and private member functions can be activated within another member function