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: Microbiology
All are Neutralization tests except: 
Select and explain. 
A. Plague inhibition test, B. Schick test, C. Nagler's reaction, D. Sabin-feldman dye test
D: Sabin-feldman dye test
Answer: D: Sabin-feldman dye test 
Explanation: Sabin-feldman dye test for detecting Toxoplasma antibodies. Complements are used.