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
Which of the following can participate in gluconeeogenesis 
Select and explain. 
A. Acetyl CoA, B. Propionyl CoA, C. Muscle glycogen, D. All of the above
B: Propionyl CoA
Answer: B: Propionyl CoA 
Explanation: Propionyl CoA
↓
Succinyl CoA
↓
Succinate
↓
Fumarate
↓
Malate
↓
Oxaloacetate ⇒ GLUCONEOGENESIS
Note: Acetyl CoA which is released from even chain fatty acids can't participate in gluconeogenesis Muscles lack glucose-6-phosphatase and hence can't.