Answer:
b) plate count
Step-by-step explanation:
Based on this scenario, the best method for this would be a plate count. This method is used to determine the degree of bacterial contamination of a specific sample that has been made by enumeration after a period of incubation of the colonies appearing in a plate that has been inoculated with a suitable dilution of the sample. This constant count allows you to easily plot the growth curve of the bacteria throughout the phases.