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
Which is true about Intusssusception ? 
Select and explain. 
A. Common in neonates, B. Fever always present, C. Not associated with tumors of intestine, D. Usually relieved by barium enema
D: Usually relieved by barium enema
Answer: D: Usually relieved by barium enema 
Explanation: Ans. is 'd' i.e., Usually relieved by barium enema