This question has options. Answer the question about text:

An owner brought in a dog that was coughing like he had something caught in his throat . He would cough so hard that he gagged and spit up a white , foamy , slimy material . He ate and drank just fine but just coughed all the time . The dog 's history revealed that he was boarded a week before , and he also had received his Bordetella or " kennel cough " vaccination a month prior .

How may the dog be feeling right now ?
Select from:
A). Sad
B). None of the above choices .
C). Sick
D). Happy
C).