This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fatty acid and synthesis, Subject name: Biochemistry
[{'content': 'Acetyl-CoA carboxylase activity requires: \nSelect and explain. \nA. Pantothenate, B. Biotin, C. Thiamine pyrophosphate, D. Riboflavin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 4 carboxylases that require biotin Acetyl-CoA carboxylase Pyruvate carboxylase, Propionyl-CoA carboxylase, Methyl-crotonyl coA carboxylase', 'role': 'assistant'}]