Consider the following C++ program // class declaration class person public: -person)i person ( ) person (int age) i int get_age ()i private: int agei hi // class implementation person::-person age1ih person: :person age-1i) person: :person (int val) 1 ageval; > int person::get_age() return agei h int main) person lucky (42)i person group[1017 person fredi // code qoes here [8 points] Which of the following are valid C++ statements that could be compiled and executed in the main function above? (circle valid or invalid). [valid invalid] [valid invalid] [valid invalid] [valid invalid] [valid invalid] [valid invalid] [valid invalid] [valid invalid] cin fred.age cout