Read the following context and choose the best option to answer the question.
Context: On DVD we watched a Saturday Night Live special featuring the 1980s . On August 9 , Mom , Casey and I ate lunch at TGI Friday 's which opened up on 53rd Street in Davenport after Casey and I worked out . Then we all saw the movie Mamma Mia . Today Casey said his mom was going to see it .
Question: What might be my relationship with Casey ?
Options: 
- None of the above choices .
 - Casey might be my friend .
 - Casey might be my brother .
 - Casey might be my sister .


Casey might be my friend .