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
Corneal dystrophies are : 
Select and explain. 
A. Macular, B. Granular, C. Lattice, D. All
D: All
Answer: D: All 
Explanation: A. i.e. Macular; B. i.e. Granular; C. i.e. Lattice