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: Physiology
[{'content': 'Which is not produced enteroendocrinally \nSelect and explain. \nA. Intrinsic factor, B. Secretin, C. Motilin, D. GIP', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Enteroendocrinal cells are the hormone secreting cells present in the glands or mucosa of the GIT particularly stomach & intestine. The enteroendocrinal cells present in gastric glands are\n\nG cells- secrete gastrin\nEnterochromaffin (EC) cells- secrete serotonin\nEnterochromaffin like (ECL) cells- secrete histamine', 'role': 'assistant'}]