T. b., a 65-year-old woman, fell as she was leaving her home. she was unable to move her left leg and appeared to be inextreme pain when the paramedics transported her to a stretcher. she was later diagnosed with a fractured hip and sentto surgery, where a pin was inserted into the fractured bone. a bone scan indicated a decrease in bone density. which anatomical structure was fractured? a. iliac crest of the coxal boneb. ischial tuberosity of the hip bonec. greater trochanter of the femurd. neck of the femur