This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitreous and retina, Subject name: Ophthalmology
First retinal abnormality in diabetic retinopathy - 
Select and explain. 
A. Microaneurysm, B. Hard exudates, C. Soft exudates, D. Cotton Wool Spots
A: Microaneurysm
Answer: A: Microaneurysm 
Explanation: Non-proliferative diabetic retinopathy (NPDR) Opthalmoscopic features of NPDR include: Microaneurysm are seen in the macular area (the earliest detectable lesion) . These are formed due to focal dilation of capillary wall following loss of pericytes. These appaear as red dots and leak fluid, proteins.", lipids and also fluorescein dye on FFA. Retinal haemorrhages Retinal oedema Hard exudates Cotton-wool spots Venous abnormalities Intraretinap microvascular abnormalities (IRMA) Dark-blot haemorrhages Ref;A.K.Khurana; 6th edition; Page no: 278