This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cellular Pathology, Subject name: Pathology
In Vitamin-A deficiency, cancerous lesions occur due to 
Select and explain. 
A. Metaplasia, B. Dysplasia, C. Aplasia, D. Hyperplasia
A: Metaplasia
Answer: A: Metaplasia 
Explanation: Ans. (a) Metaplasia(Ref: Harshmohan Pathology For Dental 4th ed, pg 81)In Vitamin-A deficiency, squamous metaplasia of conjunctiva leading to xerophthalmia.