This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharmacokinetics, Subject name: Pharmacology
[{'content': 'The drugs w hich achieve concentration in bile are all except - \nSelect and explain. \nA. Erythromycin, B. Tetracycline, C. Oral contraceptives, D. Alpha methyldopa', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Alpha methyl dopa Drugs that attain high concentration in bile areo Erythromycino Oral contraceptiveso Rifampino Ampicillino Tetracyclineo Phenolphthalein", 'role': 'assistant'}]