Find out the correct pronouns from the bracket.
__________ is a book.

The correct answer is: It

The correct answer is "It".
From the above-mentioned example, we can say that the thing shown in the picture is a book. Here, the subject is used as the substitute of a book, and to represent it, we must use a third person singular number pronoun. Among the given options, the words "he", "it" and "she" have a similar feature, but since a book is a non-living object, a neuter gender pronoun must be used. So, the correct answer is "It".