Which muscle originates from the lateral one-third of clavicle, the acromion, and the spine of the scapula?

• A. External occipital protuberance
• B. Inferior angle of scapula and lower one-third of lateral border of the scapula
• C. Lateral one-third of clavicle, acromion, and spine of the scapula
• D. Posterior iliac crest

Answer: (C)