Read the following context and choose the best option to answer the question.
Context: We transferred him from his Moses Basket over a week ago where he was sleeping really well but got too big for it and now he will only sleep for 2 hours at a time in his cot . I ' ve tried rolling up a blanket like a sausage and putting it under the sheet to make the cot seem smaller but he still wakes up and the only way I can get him back asleep is a feed in our bed and then he just spends the rest of the night with us ! Help ! I need some sleep !
Question: Why has the narrator been so moody lately ?
Options: 
A. They have had money stolen .
B. They have been discriminated against .
C. They are mad at their parents .
D. They are not getting sleep .


D