This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'Virus quantification is done by - \nSelect and explain. \nA. Egg inoculation, B. Hemadsorption, C. Plaque assay, D. Electron microscopy', 'role': 'user'}, {'content': "Answer: C \nExplanation: Quantitative assays measure the actual number of infectious paicles in the inoculum. Two methods available-plaque assay and pock assay. REF:ANATHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 8TH EDITION PAGE NO:437", 'role': 'assistant'}]