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: Ophthalmology
Most common complication of extracapsular cataract surgery is: 
Select and explain. 
A. Retinal detachment, B. Opacification of posterior capsule, C. Vitreous haemorrhage, D. Bullous keratopathy
B: Opacification of posterior capsule
Answer: B: Opacification of posterior capsule 
Explanation: Ans. Opacification of posterior capsule