Answer:
B) Piriformis, greater trochanter, sacrotuberous ligament.
Explanation:
The piriformis muscle, along with other muscles such as the gemellus superior, obturator internus, gemellus inferior, and quadratus femoris, forms the deep lateral rotator group of muscles. The piriformis muscle attaches to the anterior surface of the sacrum and extends laterally to attach to the greater trochanter of the femur. The sacrotuberous ligament extends from the sacrum to the ischial tuberosity and covers the posterior aspect of the femoral neck.
