A 17-Year-Old Boy Was Seen in the Emergency Department After

A 17-year-old boy was seen in the emergency department after receiving a stab wound at the front of the neck. The knife entrance wound was located on the left side of the neck just lateral to the tip of the greater cornu of the hyoid bone. Dur- ing the physical examination the patient was asked to protrude his tongue, which deviated to the left.
-The following statements would explain the physical signs in this patient except which?

A) The genioglossus muscles are responsible for protruding the tongue.
B) The genioglossus muscle is supplied by the glossopharyngeal nerve.
C) Paralysis of the left genioglossus muscle permitted the right genioglossus to pull the tongue forward and turned the tip to the left side.
D) The hypoglossal nerve descends in the neck between the internal carotid artery and the internal jugular vein.
E) At about the level of the tip of the greater cornu of the hyoid bone the hypoglossal nerve turns forward and crosses the internal and external carotid arteries and the lingual artery to enter the tongue.
F) The point of the knife blade severed the left hypoglossal nerve.