Context: On Monday we had to put down our Australian Shepherd . It was a tough loss for our family . Cali was a part of our family . She loved us , took care of us , protected us against strangers , swam with us and wrestled with us .

Question: What may be the reason for needing to put the dog down ?
Options:
0. They were young .
1. They were tired of holding him .
2. They were about to eat .
3. None of the above choices .
Answer: 3