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: Ophthalmology
[{'content': 'False about malignant melanoma of choroid \nSelect and explain. \nA. Most common primary intraocular tumour of the adults, B. Commonly seen in 3rd decade of life, C. Derived from neural crest, D. Associated with vitreous hemorrhage', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Commonly seen between 6th and 9th decade of life.', 'role': 'assistant'}]