This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Retina, Subject name: Ophthalmology
Most sensitive part of retina is 
Select and explain. 
A. Macula, B. Fovea-centralis, C. Optic disc, D. Peripheral-retina
B: Fovea-centralis
Answer: B: Fovea-centralis 
Explanation: Ans. is 'b' i.e Fovea Centralis Fovea centralis, is a depression or pit situated at the posterior pole of eye, 3 mm to the temporal side of the optic disc.Here the retinal layer consists only of cones and other layers are completely absentFovea is the most sensitive part of retinaFovea is surrounded by a small area, the macula lutea, which although not so sensitive, in more so than other parts of retina.