Final answer:
Fascia contributes to greater trochanteric pain syndrome by potentially being involved in the inflammatory process or by being tight, which exacerbates pain around the greater trochanter.
Step-by-step explanation:
Fascia is related to the greater trochanteric pain syndrome through its role in supporting and stabilizing joints. The fascia is a layer of connective tissue that surrounds muscles, groups of muscles, blood vessels, and nerves, binding some structures together, while permitting others to slide smoothly over each other. In the context of the greater trochanteric pain syndrome, which is often associated with inflammation of the tendons and the surrounding soft tissues around the greater trochanter of the femur, the fascia contributes to the syndrome (option c) by potentially becoming involved in the inflammation process or by being tight and compressed, which could exacerbate the pain experienced around the greater trochanter. Moreover, the tendons and muscles around a joint provide additional support, acting as "dynamic ligaments" that help resist forces and support the joint.