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
In Fincham's test: 
Select and explain. 
A. Glaucomatous halo remains intact, B. Halo due to immature cataract does not break into segments, C. Halo due to mucopurulent conjunctivitis is broken into segments, D. All of the above
A: Glaucomatous halo remains intact
Answer: A: Glaucomatous halo remains intact 
Explanation: Ans. Glaucomatous halo remains intact