This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gluconeogenesis, Subject name: Biochemistry
Arrange the following 4 enzymes of gluconeogenesis in sequence: A. Pyruvate carboxylase B. Glucose - 6 - phosphatase C. Phosphoenol pyruvate carboxy kinase D. Fructose 1,6 Bisphosphatase 
Select and explain. 
A. D-C-A-B, B. A-C-D-B, C. B-A-D-C, D. C-D-B-A
B: A-C-D-B
Answer: B: A-C-D-B 
Explanation: None