This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Liver biopsy is normal in -a) Dubin johnson syndrome b)  Gilbert syndromec)  Hemochromatosisd)  Wilson's diseasee)  Rotor's syndrome 
Select and explain. 
A. ab, B. ad, C. bc, D. be
D: be
Answer: D: be 
Explanation: Liver pathology is normal in Gilbert, Crigler Najjar, Rotor Syndrome.
In Dubin Johson syndrome liver is darkly pigmented. Liver biopsy is not normal in wilson's disease, Hemochromatosis.