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
During exercise, which of the following is decreased? 
Select and explain. 
A. Oxidation of fatty acids, B. Glucagon release, C. Glycogenolysis, D. Lipogenesis
D: Lipogenesis
Answer: D: Lipogenesis 
Explanation: Oxidation of fatty acids, glucagon release and glycogenolysis are all increased to provide energy sources for exercising muscle. The synthesis of lipid (lipogenesis) would be decreased during periods of exercise.