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
Earliest change in diabetic retinopathy is: 
Select and explain. 
A. Hard exudate, B. Soft exudate, C. Dot haemorrhage, D. Microaneurysm
D: Microaneurysm
Answer: D: Microaneurysm 
Explanation: Ans. Microaneurysm