This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Nesidioblastoma is due to hyperplasia of? 
Select and explain. 
A. Alpha cell, B. Beta cell, C. Acinus, D. D cells
B: Beta cell
Answer: B: Beta cell 
Explanation: Ans. is 'b' i.e., Beta cell Nesidioblastoma is due to hyperplasia of B cell of panceatic islets.