Read the following context and choose the best option to answer the question.
Context: I was in WalMart today to pick up a small kitchen timer . Weather permitting , we will fly the first cross - country trip of my training ( Bismarck , Dickinson , Hazen , Bismarck ) . The timer is used in conjunction with the pre - trip planning . I guess I was in a bit of a daze . I have been , lately . After waiting in a long line at the checkout to pay for my timer , I realized , moments before being rung up , that I had mistakenly grabbed a digital meat thermometer .
Question: What may be the reason why they grabbed a meat thermometer ?
Options: 
- Because they want to cook some meat .
 - Because they have n't gotten enough rest .
 - None of the above choices .
 - Because they were thinking about dinner .


Because they have n't gotten enough rest .