Context: I assumed it was a flat tire . Which was going to be impossible to change considering I did n't have the right shoes . I pulled over , and as I glanced in the rear view mirror , I noticed something shining .

Question: What was the reason I pulled over ?
Options:
0. None of the above choices .
1. A cop pulled me over .
2. I needed to change my shoes .
3. I thought I had a flat .
Answer: 3