Select the sentence that best describes disjoint subclasses.

A. If an instance of the superclass is a member of any subclasses, it can be a member of more than one subclass.

B. If an instance of the superclass is a member of any subclasses, it must be a member of only 2 subclasses.

C. If an instance of the superclass is a member of any subclasses, it can be a member of only one subclass.

D. If an instance of the superclass is a member of any subclasses, it must be a member of all of the subclasses.