<prompt> Which of the following is most common and malignant neuroendocrine tumour of pancreas?GastrinomaGlucagonomaInsulinomaVIPoma  <response>: Answer- C. InsulinomaInsulinomas are the most common pancreatic neuroendocrine tumor, but only l0 are malignant.Gastrin-producing tumor gastrinoma are the most common malignant pancreatic neuroendocrine tumor. 