Which of the following is the fourth sentence of the passage?

The correct order of the sentences is d, a, c, e and b . Here, only d mentions who we are talking about and gives the background to the whole paragraph. So, it should come first. Once we mention that the stories were written, the next is, for whom it was written for. a answers the question and is undoubtedly the second sentence. The sentences c, e and b mention about publication of the books and post-publication. In that, the decision to publish should come first. so, c is the third sentence. e comes next, because b mentions six more titles joining the existing one, and the existing titles are mentioned in e .