Teacher: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Question: A 13-year-old girl is operated on due to Hirschsprung illness at 3 months of age. Which of the following tumors is more likely to be present? 
 Options: <1> Abdominal neuroblastoma <2> Wilms tumor <3> Mesoblastic nephroma <4> Familial thyroid medullary carcinoma.
Solution: 2
Reason: The answer to the given question should be a tumor, therefore Wilms tumor is the correct answer for the given question.

Now, solve this instance: Question: Patient with diabetes mellitus, weight loss, anemia and necrolytic migraine erythema. The most likely diagnosis is: 
 Options:  <1> Somatostatinoma. <2> Insulinoma <3> Vipoma <4> Gastrinoma <5> Glucagonoma
Student:
5