This question has options. Answer the question about text:

Today did n't turn out too bad considering I got about 4 hours sleep , courtesy of our new neighbours and arrived at work in a filthy mood . At least it meant I got up and showered early , so I do n't have to wash my hair tonight . If they 're up all night again tonight though , there will be severe trouble .

Why might the neighbours have been disruptive ?
Available options:
(1). They might work night shifts
(2). None of the above choices .
(3). They might have had an emergency
(4). They might have been playing loud music
(4).