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
Anterior focal point is at distance of in front of cornea in recuded eye 
Select and explain. 
A. 22.6 mm, B. 17.2 mm, C. 15.7 mm, D. 24.13 mm
C: 15.7 mm
Answer: C: 15.7 mm 
Explanation: Answer- C. 15.7 mmAnterior Focal Point- 15.7 mm