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
All of the following are causes of congenital blindness Except 
Select and explain. 
A. Toxoplasmosis, B. Congenital rubella, C. Vitamin A deficiency, D. Cataract
C: Vitamin A deficiency
Answer: C: Vitamin A deficiency 
Explanation: Causes of congenital blindness:ToxoplasmosisCongenital cataractsGenetic diseaseCongenital rubellaCongenital glaucomaUsher syndrome(Refer: Nelson's Textbook of Pediatrics, SAE, 1st edition, pg no. 318 - 319)