This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastrointestinal Radiology, Subject name: Radiology
Investigation of choice for evaluation of upper abdominal trauma 
Select and explain. 
A. USG, B. CT, C. SCINTIGRAPHY, D. MRI
B: CT
Answer: B: CT 
Explanation: Initial investigation in abdominal trauma is FAST (USG) IOC in Abdominal Trauma - CECT