Because of polymorphism,inserting a new 'student' and inserting a new 'professor' can be done by sending an 'insert' message to each of the objects (student and professor)and letting that object interpret the message.

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Polymorphism allows objects of different classes to be treated as if they have the same interface, which means that sending a message to an object can invoke different behaviors depending on the type of object that receives the message. Therefore, sending an 'insert' message to a 'student' or a 'professor' object can be handled by each object's specific implementation of that message, enabling flexibility and extensibility in the system.

Because of Polymorphism,inserting a New 'Student' and Inserting a New