Context: 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 ?
Options:
0. Because the writer needed to hear something .
1. Because the writer got their key to the new room .
2. Because they had not changed the desks out .
3. None of the above choices .
Answer: 3