Which of the following describes unintended impact of a decision by the US government?(1 point)

Responses

a The government’s decision to pass the Clean Air Act of 1970 led to an 88 percent reduction in emissions of sulfur dioxide, a leading cause of urban smog.

b The government’s decision to pass the Clean Air Act of 1970 led to American-made cars becoming more expensive.

c The government’s decision to pass the Clean Air Act of 1970 reduced air pollution and improved public health.

d The government’s decision to create the Environmental Protection Agency led to strong enforcement of the Clean Air Act of 1970.