Which of the Following Is True Regarding Environmental Standards in the European

Which of the following is true regarding environmental standards in the European Union?

A) America is increasingly replacing the European Union as the leader in environmental development.
B) European Union policy requires significant producer accountability, placing the burden of environmental responsibility on the manufacturer.
C) American firms are not required to conform to European Union product rules in order to sell their products in Europe.
D) The European Union applies the prevention principle by which uncertainty is a reason to forego environmental protections.