I borrowed my aunt 's which , as it turns out , is a bit shit on our carpet ( and is worse on stairs ) but at least worked for longer than 10 minutes . I did n't actually time it , but it was definitely longer than 10 minutes before that one gave up too . I had managed to get to hoovering downstairs when it just switched itself off suddenly .

Question: Why did the narrator need to borrow something from their aunt ?
Answer: They needed to install stairs .They needed to clean up .None of the above choices .They needed to install carpet .