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
Virus quantification is done by- 
Select and explain. 
A. Egg inoculation, B. Hemadsorption, C. Plaque assay, D. Electron microscopy
C: Plaque assay
Answer: C: Plaque assay 
Explanation: Plaque assay and Pock assay are quantitative infective assays.