If you schedule a message to be delivered at 6 p. m., but you log out of your computer at 5 p. m., what will happen to the message? It will be delivered at 6 p. m. as scheduled.
It will be delivered when you log back in.
It will be delivered at 5 p. m. when you log out.
It will not be delivered at all and will be canceled.

4. what is the reason for including the following code snippet in the header file animal.h? #ifndef animal_h #define animal_h class animal { public: animal(); animal(double new_area_hunt); void birth(); void hunt(double new_area_hunt); void death(); double get_area_hunt() const; private: double area_hunt; }; #endif