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: Physiology
Visible range of electromagnetic spectrum of human eye 
Select and explain. 
A. 370 - 740 nm, B. 740- 1140 nm, C. 200 - 370 nm, D. 200 - 370 nm
A: 370 - 740 nm
Answer: A: 370 - 740 nm 
Explanation: Electromagnetic radiation of wavelengths approx. 400nm to 700nm, elicits a retinal response in human eye.