8. 下列何者將骨盆的坐骨大小孔分開? (A) 頸薦韌帶 (sacrocervical ligament) (B) 薦棘韌帶 (sacrospinal ligament) (C) 薦髂韌帶 (sacroiliac ligament) (D) 薦結節韌帶 (sacrotuberous ligament)