Two Sisters Were Playing in Their Bedroom Having a Pillow

Two sisters were playing in their bedroom having a pillow fight, when one of them tripped and fell head first against a window. The glass was shattered and a knifelike piece became impaled in her neck. Within seconds the wound spurted bright red blood and she ran screaming to her parents. In the emergency department of the local hospital it was immediately apparent that a large artery in the front of the neck had been pierced by the glass.
-The examining physician made the following observations and comments, all of which were correct except which?

A) The entry wound was situated along the anterior border of the sternocleidomastoid muscle at about the level of the upper border of the thyroid cartilage.
B) The artery involved could be either the terminal part of the common carotid artery or the beginning of the external or internal carotid arteries.
C) The arteries were situated beneath the investing layer of deep cervical fascia within the carotid fascial sheath.
D) The internal jugular vein, which is also located within the carotid sheath, is not involved because the blood was bright red in color and spurted from the wound on removing the pressure gauze pad.
E) Branches of the trigeminal nerve lie in the sheath at this level and are likely to have been damaged.