During a soccer game, a 20 year old man collided shoulder to shoulder with another player. He has pain and a noticeable anterior bulge to the left shoulder. What is the most effective method of immobilizing this injury?

A. An air-inflatable splint with the left arm immobilized in the flexed position
B. A long board splint with the left arm immobilized in the extended position
C. A sling to support the left arm and swathes to secure the arm to the body
D. A sling to support the left arm and swathes to maintain downward traction

Answer: C. A sling to support the left arm and swathes to secure the arm to the body