Which of the Following Is a True Statement

Multiple Choice

Which of the following is a true statement?

A) The rotator cuff is responsible for the flexible extensions at the elbow joint.
B) The head of the humerus articulates with the acromion process.
C) The ulna and the radius articulate at both the proximal and distal ends.
D) The greater tubercle of the humerus articulates at the coracoid process of the scapula.