The issubclass() function checks if the c1 argument (first argument) is a subclass of c2 class (second argument). The issubclass() function takes two parameters: class to be checked and class, type or tuple of classes and types. The fuction returns true if the first argument (c1) is a subclass of a class, or any element of the tuple. If not, it returns false.
This question is not very clear~ it is really based on the content of the function~ what if c2 is a subclass of c1? c1 and c2 are just the arguments, this information could not tell which one is sub class~ so I would say B and C
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