Using the scaffolding and the backhoe , we were able to reach all the windows and cover them in plywood . The kids ran around the yard , picking up everything that was outside . We also helped filled up containers and the bathtub with water . We fell asleep in our beds downstairs that night , and awoke upstairs in our parents ' room .
According to the above context, choose the best option to answer the following question.
Question: How did the children end up in their parent 's bedroom ?
Options:
- None of the above choices .
 - The water carried them upstairs .
 - They sleep walked upstairs .
 - Their mother carried them upstairs .


Their mother carried them upstairs .