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
A healed patch of chorioretinitis gives rise to: 
Select and explain. 
A. Negative scotoma, B. Positive scotoma, C. Both of the above, D. None of the above
A: Negative scotoma
Answer: A: Negative scotoma 
Explanation: Ans. Negative scotoma