During identification of pure culture of microorganisms the most important part is a serological identification that is conducted by means of agglutination reaction. What componenls are necessary to conduct this reaction?

Answer options

1. Thermoextract, specific serum
2. specific antigen , known antibody bacteria
3. Specific antigen. serum sample obtained from the patient
4. Unknown bacterial culture. specific antibodie
5. Unknown antibodies, nonspecific antigen