A small metal rod was shot from a metal lathe and is impaled in a man's inner thigh. Assessment indicates that there is no active bleeding from the site, but the surrounding tissues are ecchymotic. The paramedic asks you to stabilize the rod with bulky dressings. You recognize this action as important because it will:

A) prevent motion of the rod and further internal injury.
B) control any internal hemorrhage that may be occurring.
C) prevent bacteria from entering into the body.
D) apply pressure to the broken blood vessels in the skin.