Infectious disease modeling uses computers to simulate and study the behavior of complex systems. These models use existing data related to disease transmission, symptoms and health complications, and other factors to estimate the number of people who will become infected and, in some cases, die from the disease.
With covid we´ve seen this models and they are very useful to predict the outcomes of different diseases. With this models you can modify different factors and have an idea of what is going to happen.
The correct option in this case is B. It allows scientists to compare the possible outcomes of several different decisions.