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
Which steroid is formed from cholesterol without hydroxylation ? 
Select and explain. 
A. Progesterone, B. Glucocoicoid, C. Mineralocoicoid, D. Estradiol
A: Progesterone
Answer: A: Progesterone 
Explanation: Ans. is 'a' i.e., ProgesteroneProgesterone is formed before hydroxylation step.