This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Biochemistry
[{'content': 'Enzymes not impoant in testosterone biosynthesis \nSelect and explain. \nA. 5-aplha reductase, B. Delta 5-4 isomerase, C. 18 hydroxylase, D. Alpha hydroxylase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Progesterone is conveed to 18hydroxyprogestrone by 18 -hydroxylaseThese reactions are effected by hydroxylationThese specific hydroxylases are mono-oxygenasesRef: DM Vasudevan, 7th edition, page no: 665', 'role': 'assistant'}]