Muscles of mastication are innervated by the fifth cranial nerve because they develop from the first (mandibular)pharyngeal arch.

A) Both the statement and the reason are correct and related.
B) Both the statement and the reason are correct but are NOT related.
C) The statement is correct,but the reason is NOT correct.
D) The statement is NOT correct,but the reason is correct.
E) NEITHER the statement NOR the reason is correct.