This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuroradiology, Subject name: Radiology
Ring Enhancing lesion In AIDS patient is Most Likely due to? 
Select and explain. 
A. Cryptococcosis, B. Hydatid Cyst, C. Neurocysticercosis, D. Toxoplasmosis
D: Toxoplasmosis
Answer: D: Toxoplasmosis 
Explanation: *Toxoplasmosis and CNS lymphoma are the major differentials for a Ring Enhancing lesion in AIDS Patients Toxoplasmosis produces Eccentric target sign within a ring Enhancing lesion