4. You are a nursing master student evaluating a jaundiced infant in clinic. The infant appears healthy and has been entirely breast-fed. The total bilirubin level is 19 mg/dL, and the hemoglobin is normal. You have diagnosed 'lbreast milk jaundice." Which of the following is the most typical feature of breast milk jaundice? A. It is an unconjugated hyperbilirubinemia. B It usually appears within the first 12 hours of life. C. The elevated levels may persist for more than 60 days. D . It is generally associated with moderate anemia