CFCs were chemicals commonly used in refrigeration and as propellants in aerosol cans. In 1974, a research study discovered that CFCs were leading to a dangerous hole in the ozone layer. By the late 1980s most CFCs were banned as a result of the research. Which statement best describes a possible way that societal decisions were impacted by the 1974 research study? a CFCs were commonly used in refrigeration.
b CFCs were replaced with other products.
c CFCs were causing a large hole in the ozone layer.
d CFCs were the focus of a research study.