This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: vitamins, Subject name: Biochemistry
Beta alanine is formed by 
Select and explain. 
A. Biotin, B. Pyridoxal phosphate, C. Pantothenic acid, D. Folic acid
C: Pantothenic acid
Answer: C: Pantothenic acid 
Explanation: Reference: Harpers illustrated biochemistry 30th edition