Read the following context and choose the best option to answer the question.
Context: And then the boys told us they knew we had our periods when we wore our little purses . We did n't fool anyone . Today I find myself still carrying that little tiny purse .
Question: What may be the reason for them using mini purses ?
Options: 
- None of the above choices .
 - They liked to wear it for style purposes .
 - They used it to get attention from the boys .
 - They used it when they were having their period .


They used it when they were having their period .