Why Should the Morphology of the Posterior Pharyngeal Wall Be

Why should the morphology of the posterior pharyngeal wall be carefully examined in patients with velocardiofacial syndrome?

A) They often have very irregular adenoids, which can affect velopharyngeal closure
B) The carotid arteries can be medially displaced in the pharyngeal wall
C) They usually have a Passavant's ridge
D) They often have hypoplasia of the pharyngeal wall
E) They often have hyperplasia and irregularity of the posterior pharyngeal wall