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: Pediatrics
Which among the following is the Most common cause for neonatal blindness? 
Select and explain. 
A. Neisseria gonorrhoeae, B. Chlamydia trachomatis, C. Klebsiella, D. Enterobacter
A: Neisseria gonorrhoeae
Answer: A: Neisseria gonorrhoeae 
Explanation: Ophthalmia neonatorum (ON) is defined as a purulent conjunctivitis occurring during the first four weeks of life. The two most common causative agents are Neisseria gonorrhoeae and Chlamydia trachomatis, the former being of more concern here because of its propensity to cause blindness Reference: GHAI Essential pediatrics, 8th edition