1 city.h Create city.h with the following content. #ifndef CITY_H #define CITY_H #include class City! public: City (string nm, unsigned int pop) { name = nm; population = pop; void setName (string name) {this -> name = name; } void set Population (unsigned int population) {this -> population = population; } string getName() const {return this-> name; } unsigned int get Population () const {return this -> population; } virtual void printInfo() const { cout class City! public: City (string nm, unsigned int pop) { name = nm; population = pop; void setName (string name) {this -> name = name; } void set Population (unsigned int population) {this -> population = population; } string getName() const {return this-> name; } unsigned int get Population () const {return this -> population; } virtual void printInfo() const { cout