When a 2-Year-Old Child Is Admitted with a Diagnosis of Hirschsprung's

When a 2-year-old child is admitted with a diagnosis of Hirschsprung's disease,the nurse explains that the causative factor of this disease is:

A) frequent evacuation of solids,liquid,and gases.
B) excessive peristaltic movement.
C) the absence of parasympathetic ganglion cells in a portion of the colon.
D) one portion of the bowel telescoping into another.