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
One molecule of B-Carotene gives rise to 
Select and explain. 
A. 1 unit of Vitamin A, B. 2 units of Vitamin A, C. 3 units of Vitamin A, D. 4 units of Vitamin A
B: 2 units of Vitamin A
Answer: B: 2 units of Vitamin A 
Explanation: None