This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzymes, Subject name: Biochemistry
[{'content': 'CoA requires \nSelect and explain. \nA. Pantothenic group, B. Biotin, C. Folic acid, D. Cabalamine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The coenzyme A is a complex molecule containing B complex vitamin pantothenic acid and a molecule of beta mercapto ethanolamine; this SH group forms thioester bond in acyl-acyl coA . To emphasize the function of the SH group, the CoA is sometimes written as CoA-SHRef: DM Vasudevan, Page no: 131', 'role': 'assistant'}]