I think I needed to hear that . I got my key to my new room and saw that they had not changed the desks out . I have no tables at the moment , just thirty desks . I tried to move some things around , but then I hurt my back trying to move a bookshelf .

Question: What 's a possible reason the writer hurt their back trying to move a bookshelf ?
Answer: Because the writer needed to hear something .Because the writer got their key to the new room .Because they had not changed the desks out .None of the above choices .