The central domestic issues concerned government regulation of railroads and large corporations
C? I think.
Sorry If I'm wrong. Only C makes sense.
Answer
human beings are part of the environment. they are highly bonded to the environment. however there are many instances people harm environment and environment harm the people.
as an example human activities such as Deforestation, Overpopulation & Overconsumption, Plastic Production, Emission of Carbon Dioxide and Other Greenhouse Gases, Destruction of the Reefs, Production of Black Carbon affect harmfully to the environment
in return environment harmfully affect to people by natural disasters such as firestorms, duststorms, floods, hurricanes, tornadoes, volcanic eruptions, earthquakes, tsunamis, storms
So the president doesn't have to make all the decisions by himself.
