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: Gynaecology & Obstetrics
Which of the following antitubercular drugs is contraindicated in pregnancy? 
Select and explain. 
A. Isoniazid, B. Rifampicin, C. Ethambutol, D. Streptomycin
D: Streptomycin
Answer: D: Streptomycin 
Explanation: Streptomycin