The person who hit it did n't stop or turn around . I pulled over and walked back to the side of the road . I saw a hunk of bone missing from its leg , and then I looked towards the grass and there it was , popped out .
According to the above context, choose the best option to answer the following question.
Question: What may be the reason that the car kept driving ?
Options:
- They did n't want to call the police .
 - They did n't want to be held responsible for the animal .
 - None of the above choices .
 - They did n't notice that they hit an animal .


They did n't want to be held responsible for the animal .