This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
"Jack in the box" phenomenon is because of 
Select and explain. 
A. Loss of accommodation, B. Reduced visual acuity, C. Prismatic effect, D. Spherical aberration
C: Prismatic effect
Answer: C: Prismatic effect 
Explanation: .