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
The most common benign tumour of the orbit is 
Select and explain. 
A. Haemangioma, B. Optic nerve glioma, C. Benign-mixed tumour, D. Meningioma
A: Haemangioma
Answer: A: Haemangioma 
Explanation: Vascular tumours : Vascular tumours are the most common primary benign tumours of the orbit. These can be either haemangiomas or lymphangiomas. Haemangiomas are fuher divided into two types -- capillary and cavernous. Ref:- A K KHURANA; pg num:-393