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
Which of the following is the most common ocular complication with renal transplantation: 
Select and explain. 
A. Cataract, B. Glaucoma, C. Cytomegalo virus retinitis, D. Candida keratomycosis
C: Cytomegalo virus retinitis
Answer: C: Cytomegalo virus retinitis 
Explanation: Ans. Cytomegalo virus retinitis