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
Which of the following tumours present with proptosis? 
Select and explain. 
A. Nephroblastoma, B. Neuroblastoma, C. Ewings sarcoma, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: PROPTOSIS It is defined as forward displacement of the eyeball beyond the orbital margins. Causes of bilateral proptosis include: Tumours: These include symmetrical lymphoma or lymphosarcoma, secondaries from neuroblastoma, nephroblastoma, Ewing's sarcoma and leukaemic infiltration. Ref:- A K KHURANA; pg num:-379,381