This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Structure and function of protein, Subject name: Biochemistry
Which of the following is a cause of Unconjugated Hyperbilirubinemia? 
Select and explain. 
A. Crigler-Najjar syndromes types I, B. Rotor syndrome, C. Dubin-Johnson syndrome, D. Hepatitis
A: Crigler-Najjar syndromes types I
Answer: A: Crigler-Najjar syndromes types I 
Explanation: Some Causes of Unconjugated and Conjugated HyperbilirubinemiaUnconjugatedConjugatedHemolytic anemiasObstruction of the biliary treeNeonatal "physiologicaljaundice"Dubin-Johnson syndromeCrigler-Najjar syndromes types Iand IIRotor syndromeGilbe syndromeLiver diseases such as thevarious types of hepatitisToxic hyperbilirubinemiaRef: Harper&;s Biochemistry; 30th edition; Chapter 31; Porphyrins & Bile Pigments