This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Irreversible steps of Glycolysis are catalyzed by: 
Select and explain. 
A. Hexokinase, Phospho Glycerate Kinase, Pyruvate Kinase, B. Pyruvate Kinase, Fructose 1,6 Bisphosphatase, Phosphofructokinase, C. Hexokinase,  Phosphofructokinase,  Pyruvate Kinase, D. Glucokinase, Pyruvate Kinase, Glyceraldehyde 3 Phosphate Dehydrogenase
C: Hexokinase,  Phosphofructokinase,  Pyruvate Kinase
Answer: C: Hexokinase,  Phosphofructokinase,  Pyruvate Kinase 
Explanation: Irreversible Steps of Glycolysis

Hexokinase
Phosphofructokinase
Pyruvate Kinase.

Note-All the Kinases are irreversible except 1,3 Bisphosphoglyceratekinase which is reversible.
Haper 30th edition Pg-170