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
Which one of the following therapies would be safe in a patient with pulmonary tuberculosis having markedly abnormal liver function : 
Select and explain. 
A. Streptomycin + isoniazid, B. Ethambutol + isoniazid, C. Rifampicin + isoniazid, D. Streptomycin + ethambutol
D: Streptomycin + ethambutol
Answer: D: Streptomycin + ethambutol 
Explanation: None