Question: The BOOK entity listed below describes different books in a book store. There is a problem with this entity. What is the problem? table

The BOOK entity listed below describes different books in a book store. There is a problem with this entity. What is the problem?
\table[[BOOK],[BookID: VARCHAR [PK]],[Title: VARCHAR],[AuthorFirstName: VARCHAR],[AuthorLastName: VARCHAR],[AuthorEmail: VARCHAR],[AuthorPhone: VARCHAR],[CopyrightDate: VARCHAR],[ISBN: VARCHAR]]
There is no problem
There is a transitive dependency
There is a functional dependency
ClassID should not be required
 The BOOK entity listed below describes different books in a book

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