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
Area of fundus seen with direct ophthalmoscope 
Select and explain. 
A. 1 DD, B. 2 DD, C. 3 DD, D. 4 DD
B: 2 DD
Answer: B: 2 DD 
Explanation: Ans. 2 DD