Which of the following is an example of regulatory policy?

Regulatory policy refers to government actions designed to regulate or control specific activities and behaviors to protect public interests, health, safety, or the environment. An example of regulatory policy is the removal of lead from gasoline. This action was taken to address serious health and environmental concerns associated with lead exposure, particularly its effects on human health, especially in children. The regulation served to mitigate pollution, decrease health risks, and promote overall public welfare.

In contrast, options like banning plastic straws could also be considered a form of regulatory policy, but the removal of lead from gasoline had a more direct and historically significant impact on public health. Tax cuts for businesses, on the other hand, are a form of fiscal policy aimed at stimulating economic activity and do not involve regulation of behavior. Similarly, subsidizing renewable energy sources is designed to promote certain types of energy production rather than regulating existing practices, making it more of a policy to incentivize rather than to regulate.