Several patients from a reported condominium fire incident were rushed to the emergency room. Which should the nurse attend to first?

a) A 15-year-old girl, with burns on the face and chest, reports hoarseness of the voice
b) A 28-year-old man with burns on all extremities
c) A 4-year-old child who is crying inconsolably and reports severe headache
d) A 40-year-old woman with complaints of severe pain on the left thigh