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
Gluconeogenesis in fasting state is stimulated by 
Select and explain. 
A. Pyruvate kinase stimulated by citrate, B. Activation of pyruvate carboxylase by acetyl Co-A, C. Activation of pyruvate kinase by fructose 1, 6-bisphosphate, D. Stimulation of phosphofructokinase-1 by fructose 2, 6-bisphosphate
B: Activation of pyruvate carboxylase by acetyl Co-A
Answer: B: Activation of pyruvate carboxylase by acetyl Co-A 
Explanation: Ans. b. Activation of pyruvate carboxylase by acetyl Co-A