Question

cell research led to the development of epidemiology, which is a field of medicine that deals with the study of the cellular basis of human infections. the study of the immune system. the study of how infectious diseases spread through a population. the study of the basic properties and functions of cells.

Explanation:

Epidemiology is the study of how diseases spread in populations. The option "the study of how infectious diseases spread through a population" matches this definition. The other options: studying cellular basis of infections is more about cell biology/immunology, studying immune system is immunology, and studying basic cell properties is cell biology.

Answer:

the study of how infectious diseases spread through a population.