Which of the Following Is an Important Application of the Trapezius

Which of the following is an important application of the trapezius muscle?

A) It is always used in preventing the glenoid fossae from being pulled down during the lifting of objects with the arms.
B) It rotates the medial border of the scapula down and back toward the spinal column when chinning movement begins.
C) It is always used in movements drawing the scapula forward with slight upward rotation, such as throwing a baseball.
D) It has a significant role in protecting and stabilizing the sternoclavicular joint during upper extremity movements.