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
Ethambutol is safer in patient of: 
Select and explain. 
A. Liver disease, B. Kidney disease, C. Gout, D. Both 1 and 2
A: Liver disease
Answer: A: Liver disease 
Explanation: All first line drugs used against M.Tuberculosis are hepatotoxic except Ethambutol. But it requires dose adjustment in renal failure.