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
Swinging flash light test is used to examine: 
Select and explain. 
A. Cornea, B. Pupil, C. Lens, D. Conjunctiva
B: Pupil
Answer: B: Pupil 
Explanation: Pupil