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 of the following is the best radiological investigation in a case of suspected splenic rupture? 
Select and explain. 
A. CT, B. USG, C. MRI, D. Peritoneal rupture
A: CT
Answer: A: CT 
Explanation: CT can clearly show the extend of splenic injury. It can also distinguish the ble poion of the spleen.