Read the following context and choose the best option to answer the question.
Context: We think it 's something she ate . She 's laying in my sister 's bed because it 's more comfortable than mine . I ca n't disturb her this way by the plethora of shifting keys , computer light and sound of the television .
Question: Why would the girl be lying down ?
Options: 
- None of the above choices .
 - She is experiencing a stomach bug .
 - She is trying to get sleep with the television on .
 - She is tired .


She is experiencing a stomach bug .