Context: Ugh , the stupid temporary crown on my tooth fell off today . It was right before lunch at work . As soon as it fell off and my little nubbin of a tooth made contact with air and my tongue it started to hurt really bad .

Question: Why was it hurting ?
Options:
0. My tongue was hurting because I bit it .
1. None of the above choices .
2. My teeth was hurting because it was in poor shape and made contact with the air .
3. I bit my tongue .
Answer: 2