Question

which bone has a glenoid cavity that is the site of articulation with the humerus in the pectoral girdle? answer clavicle scapula ulna radius i dont know yet

Explanation:

The scapula (shoulder - blade) in the pectoral girdle has a glenoid cavity which articulates with the head of the humerus to form the glenohumeral joint.

Answer:

B. Scapula