Which statement about the class methods is true?

1.  A class method holds all of the data for a particular class.
2.  A class method can modify the state of the class, but it cannot directly modify the state of an instance that inherits from that class.
3.  A class method is a regular function that belongs to a class, but it must return None
4.  A class method is similar to a regular function, but a class method does not take any arguments.

Correct Answer:

•  A class method can modify the state of the class, but it cannot directly modify the state of an instance that inherits from that class.