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
Most common site of bony metastases in retinoblastoma 
Select and explain. 
A. Skull bones, B. Hip bones, C. Ribs, D. Veebrae
A: Skull bones
Answer: A: Skull bones 
Explanation: Answer-A. Skull bonesThe most frequently identified sites of metaststic involvement in children with retinoblastoma include skull bones, distal bones, brain, spinal cord, lymph nodes and abdominal viscera.