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: None