Context: And it was n't half bad . The girls were very nice , and I got $ 15 for two hours . I did n't really have to do much other than make lunch though , since they played with cars the whole time .

Question: How did I make an extra fifteen dollars ?
Options:
0. I babysat some children .
1. None of the above choices .
2. I mowed my friend 's lawn .
3. I sold a few t - shirts I owned .
Answer: 0