This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lens, Subject name: Ophthalmology
Best way to prevent infection after cataract surgery is- 
Select and explain. 
A. Antibiotics, B. Eyebrows shaving, C. Through irrigation, D. None of the above
A: Antibiotics
Answer: A: Antibiotics 
Explanation: 4 times for 14 days comprehensive ophthalmology. REF:khurana,pg no 210