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
Visible range of electromagnetic spectrum of human eye- 
Select and explain. 
A. 370 - 740 nm, B. 740 -1140 nm, C. 200 - 370 nm, D. 570 - 770 nm
A: 370 - 740 nm
Answer: A: 370 - 740 nm 
Explanation: As perceived by the human eye; light consists of there wavelengths of electromagenatic radiation (approximately 400-700 mm) which are capable of eliciting retinal response.