This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
[{'content': 'Rapid serological diagnostic tests include all except - \nSelect and explain. \nA. Latex agglutination, B. Spectrophometry, C. Gel electrophoresis, D. Radioimmunoassay', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Spectrophotometry is not a rapid serological test it is a quantitative measurement of the reflection or transmission propeies of a material as a function of wavelength. A spectrophotometer is commonly used for the measurement of transmittance or reflectance of solutions, transparent or opaque solids, such as polished glass, or gases. Ref: www.mayoclinic.com', 'role': 'assistant'}]