A computer model of the spread of a disease through a human population
can be used to make predictions about changes in case numbers over time.
Which sentence best describes a benefit of using a computer model of the
spread of a disease?
A. It gives details about how each person might be affected by the
disease.
B. It displays information about how a possible treatment for the
disease will affect a specific individual.
C. It can be used to study details of the disease that are too small to
be observed directly.
D. It allows scientists to compare the possible outcomes of several
different decisions.