This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carbohydrates, Subject name: Biochemistry
Irreversible steps of Glycolysis are catalysed by: 
Select and explain. 
A. Hexokinase, Phosphofructokinase, Pyruvate Kinase, B. Glucokinase, Pyruvate Kinase, Glyceraldehyde 3 Phosphate Dehydrogenase, C. Hexokinase, Phospho Glycerate Kinase, Pyruvate Kinase, D. Pyruvate Kinase, Fructose 1,6 Bisphosphatase, Phospho FructoKinase
A: Hexokinase, Phosphofructokinase, Pyruvate Kinase
Answer: A: Hexokinase, Phosphofructokinase, Pyruvate Kinase 
Explanation: Ans. A. Hexokinase, Phosphofructokinase, Pyruvate Kinase(Ref: Harper 29/e page 171-174, Harper 31/e page 160,161)Remember: All the Kinases are irreversible except 1,3 Bisphospho Glycerate Kinase which is reversible.