Muscle regeneration occurs mainly thanks to the following, except….

a. satellite cells that are responsible for differentiating into myofibrils and aggregate to form myotubules

b. fibronectin from the bloodstream that forms a hematoma

c. vascularization and inflammation that promotes clotting factors

d. neurons that in the synapse are responsible for forming the neuromuscular junction and repairing the muscle

e. fibroblasts that form a scar of connective tissue that is gradually replaced by muscle fibers