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
Cotton wool spot is /are seen in – a) DRb) Hypertensive retinopathyc) AIDSd) Retinoblastomae) Toxaemia of pregnancy 
Select and explain. 
A. abce, B. abcd, C. acde, D. abde
A: abce
Answer: A: abce 
Explanation: None