Today was not a good day . Marek hardly ate anything at all during the night and this morning , despite being hungry and waking every half hour - hour . I called cardiology and they recommended that I either see the pediatrician again today ( we saw him yesterday ) or go to emergency . Well , we could n't see him again today , so off to ER we went .
Why is the narrator not getting good sleep ?
Pick the best answer from the following options:
A. Their shift at the hospital went long .
B. None of the above choices .
C. Their grandfather is sick .
D. Their child is sick .


D