Read the following context and choose the best option to answer the question.
Context: Along the way , important information was asked and written for admission to the hopsital ... the medical personnel were really nice , they even showed my other son how the sirens work . We arrived at the hospital before 4:30 pm , and I could only say thank you to them as my mind was still whirling a little .
Question: What may be the reason for their mind being a jumble ?
Options: 
A. None of the above choices .
B. They are concerned about the sirens .
C. They are concerned about their son .
D. They did n't get enough sleep .


C