This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Microbiology
Species identifications is done by 
Select and explain. 
A. Precipitin test, B. Benzidine test, C. Spectroscopy, D. Neutron activation analysis (N.A.A.)
A: Precipitin test
Answer: A: Precipitin test 
Explanation: Tests for species identification are Precipitin test, Latex agglutination test, Haem-agglutination inhibition test