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
[{'content': 'In Vitamin-A deficiency, cancerous lesions occur due to \nSelect and explain. \nA. Metaplasia, B. Dysplasia, C. Aplasia, D. Hyperplasia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Metaplasia(Ref: Harshmohan Pathology For Dental 4th ed, pg 81)In Vitamin-A deficiency, squamous metaplasia of conjunctiva leading to xerophthalmia.', 'role': 'assistant'}]