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: Forensic Medicine
Drug containing two sulfhydryl groups in a molecule: Maharashtra 09 
Select and explain. 
A. BAL, B. EDTA, C. Penicillamine, D. None
A: BAL
Answer: A: BAL 
Explanation: Ans. BAL