What does the 'issubclass()' function do in Python?

The 'issubclass()' function in Python is specifically designed to determine if a class is considered a subclass of another class or a tuple of classes. When you call this function with two arguments, it checks the inheritance relationship between the classes provided. If the first argument is indeed a subclass of the second argument, or if it matches the second argument directly, the function returns True; otherwise, it returns False.

This functionality is crucial for understanding class hierarchies in object-oriented programming. For example, in a situation where you have a base class and derived classes, you can utilize 'issubclass()' to verify whether a particular class inherits from another, enabling you to implement polymorphism and other design patterns effectively.

In contrast, the other options do not accurately represent what the 'issubclass()' function does. It does not create subclasses, list all subclasses, or remove subclasses from memory. These functions pertain to different aspects of class management and inheritance in Python.