This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Chronic dysentery, abdominal pain, and rectal prolapse in children is caused by - 
Select and explain. 
A. Enterobius vermicularis, B. Ascariasis, C. Trichuris trichiura, D. Trichinella spiralis
C: Trichuris trichiura
Answer: C: Trichuris trichiura 
Explanation: None