The common agriculture policy of the European Union has supported European farmers via: A: Export tariffs and domestic content regulations B: Variable levies and voluntary export agreements C: Content regualtions and export subsides D: Export subsidies and variable levies

Which device has the European Union used to equalize farm-product import prices with politically determined European Union prices, regardlessof shifts in world prices? A: Variable levies B: Import quotas C: Import subsidies D: Domestic content regulations