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: Surgery
True about Trichobezors except - 
Select and explain. 
A. It is caused by Trichuris, B. It is a psychatric manifestation, C. Ball of hairs in the stomach, D. Pulling the hair & sucking of hair is usually seen
A: It is caused by Trichuris
Answer: A: It is caused by Trichuris 
Explanation: None