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
In glycolysis, the first commited step is catalysed by : 
Select and explain. 
A. 2 ,3 DPG, B. Glucokinase, C. Hexokinase, D. Phosphofructokinase.
D: Phosphofructokinase.
Answer: D: Phosphofructokinase. 
Explanation: D i.e. Phosphofructokinase