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: Anatomy
[{'content': 'Cervical veebra is differentiated from the thoracic veebra by the presence of: \nSelect and explain. \nA. Large veebral body, B. Upward facing superior facets, C. Triangular foramin, D. Foramen transversarium', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Foramen transversurism', 'role': 'assistant'}]