Context: His vet decided to postpone his surgery , and asked permission to do some blood work . The results were good and bad . He did n't have a fatal disease , but there was a chance he had an incurable illness . Not untreatable , but incurable .

Question: What may be the reason for postponing surgery ?
Options:
0. They were getting better .
1. They were sick .
2. They did n't think anything was wrong .
3. None of the above choices .
Answer: 1