Which statement most accurately describes Neonatal jaundice?

A. Yellow discoloration in a newborn caused by elevated bilirubin. B. A seizure associated with fever in a young child without central nervous system infection or another defined cause. C. Acute diarrhoeal illness with risk of dehydration, especially in infants and young children. D. An upper-airway viral illness characterised by barking cough and inspiratory stridor.