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
The sequence of events in glycogenolysis? 
Select and explain. 
A. Phosphorylase, Glucan transferase, Debranching, Phosphorylase, B. Debranching, Phosphorylase, transferase, phosphorylase, C. Transferase, phosphorylase, Debranching, phosphorylase, D. Any of the above
A: Phosphorylase, Glucan transferase, Debranching, Phosphorylase
Answer: A: Phosphorylase, Glucan transferase, Debranching, Phosphorylase 
Explanation: Phosphorylase, Glucan transferase, Debranching, Phosphorylase

Enzymes of glycogenolysis come into play in the following sequence : (i) Glycogen phosphorylase → (ii) Glucan transferase → (iii) Debranching enzyme.