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
Commonest infection causing blindnesss in adult man : 
Select and explain. 
A. Toxocara, B. Plasmodium, C. Toxoplasma gondii, D. Tenia solium
C: Toxoplasma gondii
Answer: C: Toxoplasma gondii 
Explanation: C i.e. Toxoplasma gondii