1. Write the ZooAnimal inline member function reptWeightDate. It should simply return the weightDate data member. enum scale {ounces, kilograms}; class ZooAnimal { private: char *name; int cageNumber; int weightDate; int weight; public: void Create (char*, int, int, int); // create function void Destroy (); // destroy function void changeWeight (int pounds); void changeWeightDate (int today); char* reptName (); int reptWeight (); void reptWeight (scale which); inline int reptWeightDate (); int daysSinceLastWeighed (int today); }; 2. Modify the prototype for changeWeightDate below to make it the appropriate single line inline member function changeWeightDate. The single line needed should set the data member weightDate equal to the parameter today. enum scale {ounces, kilograms}; class ZooAnimal { private: char *name; int cageNumber; int weightDate; int weight; public: void Create (char*, int, int, int); // create function void Destroy (); // destroy function void changeWeight (int pounds); inline void changeWeightDate (int today); char* reptName (); int reptWeight (); void reptWeight (scale which); int reptWeightDate (); int daysSinceLastWeighed (int today); }; 3. Write the ZooAnimal member function isMotherOf. It needs only a single statement that makes the mother data member of the ZooAnimal object parameter a pointer to the ZooAnimal object for which this function is called. class ZooAnimal { private: char *name; int cageNumber; int weightDate; int weight; ZooAnimal *mother; public: void Create (char*, int, int, int); // create function void Destroy (); // destroy function void isMotherOf (ZooAnimal&); void changeWeight (int pounds); void changeWeightDate (int today); char* reptName (); int reptWeight (); void reptWeight (scale which); inline int reptWeightDate () {return weightDate;}; int daysSinceLastWeighed (int today); };