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
True about fovea centralis: 
Select and explain. 
A. Cones present, B. Visual acquity lowest, C. Optic nerve passes, D. Rods present
A: Cones present
Answer: A: Cones present 
Explanation: Ans. Cones present