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
A one year old child having leucocoria was detected to be having a unilateral, large retinoblastoma filling half the globe. Current therapy would involve: 
Select and explain. 
A. Enucleation, B. Chemotherapy followed by local dyes, C. Direct Laser ablation using photo dynamic cryotherapy, D. Scleral radiotherapy followed by chemotherapy
A: Enucleation
Answer: A: Enucleation 
Explanation: A i.e. Enucleation