Question: What is the primary energy system utilized by Type IIb (Fast Glycolytic) muscle fibers, and how does their fatigue resistance compare to other muscle fiber types? Need Assignment Help? Select one: a. Creatine phosphate synthesis; Variable fatigue resistance b. Oxidative phosphorylation; Moderate fatigue resistance O c. Anaerobic glycolysis; Low fatigue resistance O d. Aerobic respiration; Low fatigue resistance