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 the investigation of choice for retroperitoneal soft tissue sarcomas 
Select and explain. 
A. MRI, B. CT Scan, C. USG, D. PET scan
B: CT Scan
Answer: B: CT Scan 
Explanation: Answer- B. CT ScanCT is the investigation ofchoice for retroperitoneal soft tissue sarcomas.