This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
In 100-m dash, most of the energy consumed by skeletal muscles to replenish ATP is derived from 
Select and explain. 
A. Phosphocreatine, B. Aerobic glycolysis, C. Oxidation of Fatty acids, D. None of the above
A: Phosphocreatine
Answer: A: Phosphocreatine 
Explanation: In a 100-m dash that takes 10s , 85% of the energy consumed is derived anaerobically by Phosphocreatine, which is hydrolysed to creatine and phosphate groups with the release of considerable energy. Ref: Guyton And Hall Textbook of Medical Physiology 13th edition Pgno: 82