Answer: B - George is an actor. Here, the conclusion that "George is an extrovert" is given, and the major premise establishes a connection between actors and extroverts. Thus, the conclusion that George is an extrovert can only be reached in this question if George is within the class of actors. Answer A is incorrect because Kramer is not mentioned in the conclusion. Answer C is not correct because it basically restates the conclusion in different words. Answer D is not correct because it does not establish George's membership in (any) class.
