Which of the following Functional dependency indicates that if A and B are fields of a table, if there is some attributes can be removed from A and yet the dependency of B still holds. Half Functional Dependency

Partial Functional Dependency

Transitive Functional Dependency

Full Functional Dependency

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