Patient X, a 3-year-old female, came in because of difficulty breathing. Condition started 4 days prior to admission when periorbital edema was noted which progressed and became generalized. Condition was associated with non-productive cough. 
a) Acute Respiratory Distress Syndrome (ARDS). 
b) Pneumonia. 
c) Croup. 
d) Asthma.