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
[{'content': 'Gastrointestinal stromal malignancy arises from which ofthefollowing:- \nSelect and explain. \nA. Smooth muscle, B. Nerve cells, C. Interstitial cells of Cajal, D. Vascular Endothelium', 'role': 'user'}, {'content': 'Answer: C \nExplanation: . Interstitial cells of Cajal', 'role': 'assistant'}]