Interpretative literature is said to be interactive because

Interpretative literature is said to be interactive because the reader interpret what the author wants to convey and tries to portray on his characters and the story as a whole. The reader has to take part in discovering the meaning of the work. While doing this, the reader also tries to be in contact with his understandings, feelings and emotions. He tries to empathize with the author’s mind, feelings and emotions like they are in one conversation with each other.

i also think the correct answer here would be b.