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: Pharmacology
[{'content': 'Hepatitis with cholestatic jaundice occurs most frequently as an adverse reaction to the following preparation of erythromycin : \nSelect and explain. \nA. Erythromycin base, B. Erythromycin stearate, C. Erythromycin estolate, D. Erythromycin ethyl succinate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]