This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Ophthalmology
Cataract is caused by the deficiency of all of the following EXCEPT 
Select and explain. 
A. Vitamin D, B. Vitamin A, C. Calcium, D. Vitamin E
B: Vitamin A
Answer: B: Vitamin A 
Explanation: (B) Vitamin A # Deficiency of vitamin D: It may be associated with zonular cataract, papilloedema and increased lacrimation.> Deficiency of vitamin A: Ocular manifestations of vitamin A deficiency are referred to as xerophthalmia. Not associated with cataract.> Dietary factors: Anomalous diet as regards certain proteins, amino acids, vitamins (riboflavin, vitamin E, vitamin C), and essential elements have also been blamed for early onset and maturation of senile cataract.> Hypocalcaemic cataract may be associated with parathyroid tetany.