The most common cause of preventable blindness among children in India is Vitamin A deficiency.
Vitamin A is crucial for vision, particularly for the cornea's health and function. A lack of this essential nutrient can lead to a condition called xerophthalmia.
This deficiency is preventable through adequate nutrition, making the resulting blindness avoidable. Public health initiatives focusing on Vitamin A supplementation and dietary improvement are key to combating this issue in India.
While other options like Trachoma can cause blindness, and trauma or infections can contribute, Vitamin A deficiency is cited as the leading cause of *preventable* childhood blindness specifically in the Indian context.
Correct Answer: Option C