This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Malnutrition, Subject name: Pediatrics
Corneal Xerosis corresponds to which stage of Xerophthalmia (As per as WHO) 
Select and explain. 
A. X 1B, B. X 2, C. X 3A, D. X 3 B
B: X 2
Answer: B: X 2 
Explanation: X2 is corneal xerosis as per as WHO classification of xerophthalmia