-Any author in the database:
A) Has written a book as the sole author
B) May be without a book in the database
C) Has written a book with another author
D) Has written at least one book, with or without another author

Question

-Any author in the database:
A) Has written a book as the sole author 
B) May be without a book in the database 
C) Has written a book with another author 
D) Has written at least one book, with or without another author

Quizplus · Accepted Answer

As per the given options, option D is the most suitable answer as it covers all the possible scenarios. It states that an author has written at least one book, with or without another author, which can be any number of books. Therefore, option D is the best choice.

-Any Author in the Database