Gospels | epistles | revelation a. letters b. parables c. last book d. return of jesus e. teachings of jesus f. many written by paul which out of the six options belong in any of those different categories. write in details if you have any questions about this.

I do believe that the last one, E, is right.  In the Bible, Revelation is the last book, so it marks out C.  The rest don't really make sense if you think about the question.  Also, you can look it up or talk to someone and tell them to give you information about Paul.