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
False about malignant melanoma of choroid 
Select and explain. 
A. 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
B: Commonly seen in 3rd decade of life
Answer: B: Commonly seen in 3rd decade of life 
Explanation: Commonly seen between 6th and 9th decade of life.