The Sternal Angle, a Surface Landmark of the Chest

Multiple Choice

The sternal angle, a surface landmark of the chest:

A) lies at the junction of the clavicles and manubrium.
B) can be used to locate the costal cartilages of the second ribs.
C) is a depression on the superior border of the manubrium.
D) is found at the inferior end of the sternum.