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
A 80 years old male presented with lung abscess in left upper zone. Best treatment modality is 
Select and explain. 
A. Antibiotics according to organisms, B. Surgical drainage, C. Tube thoracostomy, D. Wait and watch
A: Antibiotics according to organisms
Answer: A: Antibiotics according to organisms 
Explanation: Ans. is 'a' i.e. Antibiotics according to organism