Answer:
a. hydrolysis of creatine phosphate
Explanation:
Most of the ATP is generated via the hydrolysis of creatine phosphate
because , ATP is involved in the allosteric regulation of many reactions , the muscles store energy in phosphate bonds of creatine phosphate which is used to phosphorylate ADP in a relaxed state to generate ATP . Aerobic and anaerobic respiration generate ATP during exercise or activated state of the muscle .