Context: I called the SPCA to make an appointment for my 16 week old puppy 's third set of shots . They informed me that they will not give vaccinations unless the dog is spayed , and gave me an appointment to have her fixed . August 14th . At this time , she 'll be 18 weeks .

Question: What may be the SPCA 's reason for not vaccinating your dog ?
Options:
0. Its genitals were recently removed .
1. The puppy had to wait 13 more weeks before the next set of shots .
2. Its genitals needed to be removed first .
3. None of the above choices .
Answer: 2