Context: I held him , gazing into his glazed eyes , telling him I loved him , as the vet administered the shot . We were nervous when the German Shepherd puppy wandered up to our property the next year , not sure how Charly would react to him . But Charly adopted him and now , even though Max is twice Charly 's size , Charly still treats him like his baby . And Max lets him .

Question: What may be the reason why the vet administered the shot ?
Options:
0. They did nt know what was in the shot and wanted to .
1. They wanted to try their hand at killing wounded animals .
2. None of the above choices .
3. They wanted to test their brand new needle at work .
Answer: 2