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
Most common malignant intraorbital tumor in adult is- 
Select and explain. 
A. Lymphoma, B. Rhabdomyosarcoma, C. Dermoid cyst, D. Sarcoma
A: Lymphoma
Answer: A: Lymphoma 
Explanation: *Most common malignant orbital tumor in adult-> lymphoma.