Which Muscles Are Responsible for the Primary Action of the Humerus

Multiple Choice

Which muscles are responsible for the primary action of the humerus in the shoulder joint motion during the propulsive phase of the overarm throw?
1) anterior deltoid
2) subscapularis
3) latissimus dorsi
4) pectoralis major
5) posterior deltoid
6) teres major

A) 1, 2, 5
B) 1, 4, 6
C) 2, 3, 4
D) 4, 5, 6