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': 'In RBC the enzyme deficient is \nSelect and explain. \nA. Hexokinase, B. Phosphofructokinase, C. Pyruvate kinase, D. Glycerol kinase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Pyruvate kinase is an enzyme that helps Cells turn sugar(glucose) into energy (Called Adenosine Triphsphate,ATP) in a process called glycolysis . Red cells rely on this process for energy and so, pyruvate kinase deficiency leads to a deficiency in energy and to premature red cell destruction .', 'role': 'assistant'}]