Question

the pectoral girdle consists of the
scapula and humerus.
clavicle, scapula, and sternum.
clavicle and humerus.
clavicle, scapula, and humerus.
clavicle and scapula.

Explanation:

The pectoral girdle (shoulder girdle) is the bony structure that connects the upper limb to the axial skeleton. It is composed of two paired bones: the clavicle (collarbone) and scapula (shoulder blade). The humerus is part of the upper arm, not the girdle, and the sternum is part of the axial skeleton, not the pectoral girdle.

Answer:

clavicle and scapula.