Max 's sister came to visit last night on her way to New Orleans and brought our niece ( 2 ) and nephew ( 5 ) . ( Max went with them today ) . We blew up the air mattress and had a sleepover .
According to the above context, choose the best option to answer the following question.
Question: What may be the reason for them staying overnight ?
Options:
A. They were up too late .
B. They do n't have a home .
C. They do n't live in the area .
D. None of the above choices .


C