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: Biochemistry
Electron transpo from cytochrome 'b' to cytochrome `c' is inhibited by ? 
Select and explain. 
A. Oligomycin, B. Antimycin, C. Piericidin, D. Carbon monoxide
B: Antimycin
Answer: B: Antimycin 
Explanation: Ans. is 'b' i.e., Antimycin Cytochrome b to cytochrome CI (complex III) is inhibited by dimercaprol, antimycin A, BAL and naphthyloquinone.