This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: Ophthalmology
[{'content': 'Most common site of metastasis in intraorbital melanoma is \nSelect and explain. \nA. Brain, B. Lung, C. Lymph node, D. Liver', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Blood-borne metastasis usually occurs in liver and is the commonest cause of death. Lymphatic spread is usually not known. Ref: khurana page no. 174', 'role': 'assistant'}]