Answer:
The study of organisms and the impact they have on the environment (or that the environment has on them) is called environmental biology (B).
Step-by-step explanation:
Environmental biology is a field of biology that focuses on the interactions between living organisms and their environment. It encompasses a wide range of topics, including ecology, conservation biology, biodiversity, and environmental science. Environmental biologists study the ways in which organisms adapt to their environment, the effects of human activities on the environment, and the ways in which ecosystems work and are interconnected. They may work in a variety of settings, including academia, government agencies, non-profit organizations, and private industry.