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
Conjunctivitis in newborn is commonly caused by: 
Select and explain. 
A. Streptococcus, B. Gonococcus, C. Pseudomonas, D. Chlamydia
D: Chlamydia
Answer: D: Chlamydia 
Explanation: Ans. Chlamydia