The correct answer is b) Perimysium.
The perimysium is the connective tissue layer that surrounds a fascicle, which is a bundle of muscle fibers. Each muscle is made up of many fascicles, and the perimysium helps to protect and support these bundles while allowing for the force generated by the muscle fibers to be transmitted. On the other hand, the epimysium surrounds the entire muscle, and the endomysium surrounds individual muscle fibers within the fascicles. Understanding these layers is essential for grasping how muscle structure and function are organized.