As I was crawling back into bed I realized I did n't feel like puking . The morning sickness has n't been bad , but it 's there . This morning I laid there for a few minutes waiting for the familiar wave of nausea to hit me . When it did n't I woke up Chris and preceded to get a little scared about it .
According to the above context, choose the best option to answer the following question.
Question: What seems to be causing their illness ?
Options:
A. None of the above choices .
B. They are with a viral infection .
C. They are with child .
D. They are contracting what Chris had .


C