Critic: To be a literary classic a book must reveal something significant about the human condition. Furthermore, nothing that is unworthy of serious study reveals anything significant about the human condition. If the critic's statements are true, which one of the following must also be true? ['A book is a literary classic only if it is worthy of serious study.', 'Some books worthy of serious study do not reveal anything significant about the human condition.', 'Any book worthy of serious study is a literary classic.', 'Some books that reveal something significant about the human condition are not literary classics.']