Which one of the following statements is true?
(a) The head of the humerus bone articulates with the acetabulum of the pectoral girdle.
(b) The head of the humerus bone articulates with the glenoid cavity of the pectoral girdle.
(c) The head of the humerus bone articulates with a cavity called the acetabulum of the pelvic girdle.
(d) The head of the humerus bone articulates with a glenoid cavity of the pelvic girdle.
The answer is option (b) Head of the humerus bone articulates with the glenoid cavity of the pectoral girdle.