The correct option is D Humerus with scapula
Answer- c
Each half of pectoral girdle consists of a clavicle and a scapula. Scapula is a large triangular flat bone situated in the dorsal part of the thorax between the second and the seventh ribs. The dorsal, flat, triangular body of scapula has a slightly elevated ridge called the spine which projects as a flat, expanded process called the acromion. The clavicle articulates with this.
Below the acromion is a depression called the glenoid cavity which articulates with the head of the humerus to form the shoulder joint. So, glenoid cavity of scapula articulates with the head of the humerus.
Each clavicle is a long slender bone with two curvatures. This bone is commonly called the collar bone.