A Child Is Brought to a Gastroenterologist Because of Persistent

A child is brought to a gastroenterologist because of persistent diarrhea,particularly after fatty meals.An extensive workup eventually reveals that the child lacks the ability to synthesize peptide YY.The increased stool volume seen in the child is probably ascribable primarily to abnormally high active secretion of which of the following?

A) Short-chain fatty acids
B) Na⁺
C) K⁺
D) Cl⁻
E) Triglycerides