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: Pharmacology
[{'content': 'Octreotide is useful in esophageal varices. It is a synthetic analogue of somatostatin. The true statement regarding this drug is: \nSelect and explain. \nA. It can be given orally, B. It is longer acting than somatostatin, C. Its major adverse effect is secretory diarrhea, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]