which is an example of regulation in the automobile industry?\nthe creation of fuel-efficiency standards for…

which is an example of regulation in the automobile industry?\nthe creation of fuel-efficiency standards for cars\nthe installation of satellite radio systems in some cars\nthe usage of multiple-year warranties to cover repairs\nthe production of hybrid models that conserve gasoline
Answer
Brief Explanations:
Regulation in an industry involves rules/standards set (often by government) to guide practices. Fuel - efficiency standards for cars are regulatory as they set requirements for manufacturers. Installing satellite radios, using warranties, or producing hybrid models are business or product choices, not regulations.
Answer:
the creation of fuel - efficiency standards for cars