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
Renal trauma is best treated by - 
Select and explain. 
A. Observation and suppoive measures, B. Early drainage of perirenal haematoma, C. Heminephrectomy, D. Nephrostomy
A: Observation and suppoive measures
Answer: A: Observation and suppoive measures 
Explanation: Ans. is 'a' i.e., Observation and suppoive measures