Question

test major bones
scapula
patella
sternum
clavicle

Explanation:

The blue - colored bones in the skeletal diagram are the scapulae (shoulder blades). The patella is the kneecap, the sternum is the breastbone (central in the chest), and the clavicle is the collarbone. By comparing the shape and position of the blue bones with the descriptions of these bones, we can see that they match the scapula.

Answer:

A. scapula