We left Vienna on the overnight train to Venice . I had successfully managed to book a couchette for us when we were in Berlin and I had hoped that we 'd have a cabin to ourselves but it was n't to be . There were six beds in the couchette .
According to the above context, choose the best option to answer the following question.
Question: What may be the reason for having so many couchette 's in a room ?
Options:
- They were all booked up .
 - They need to accommodate a lot of people .
 - They did n't want privacy .
 - None of the above choices .


They need to accommodate a lot of people .