Context: DENTIST : We ca n't take it out while it 's infected . ME : Actually , while it 's infected is exactly the time you should be taking it out ! If it was n't infected , I 'd be willing to keep it !
Question: Why ca n't the tooth be extracted ?
Option 0: Because the tooth is infected .
Option 1: Because the tooth is impacted .
Option 2: Because the tooth is healthy .
Option 3: Because the tooth is not infected .
Answer: 0