This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
Which of the following enzymes, requires Biotin as the coenzyme? 
Select and explain. 
A. Pyruvate Dehydrogenase, B. Pyruvate Kinase, C. Pyruvate Carboxylase, D. PEP Carboxy Kinase
C: Pyruvate Carboxylase
Answer: C: Pyruvate Carboxylase 
Explanation: Biotin is a coenzyme in carboxylation reactions, in which it serves as a carrier of activated carbon dioxide.