Which one of the following is the description about the characters for writing a book review?

The correct answer is: All the above.

The correct answer is "All the above".
While talking about the characters of a book, an expert reviewer must mention all the characters in a non-specific manner, followed by highlighting the principal characters who are on the lead. He must elaborate the features of the characters by explaining their qualities and impact on the readers. Among the given options, the first three sentences play these three vital aspects of character analysis. So, the corr3ectanswer is "All the above".