Russia Imposed Limits on How Much Poultry, Beef, and Pork

Russia imposed limits on how much poultry, beef, and pork could be imported into the nation from the European Union (EU) in retaliation to limits the EU placed on how much grain Russia could export. What type of nontariff barrier did Russia use to control the amount of poultry, beef, and port it imported from the EU?

A) quotas
B) subsidies
C) boycotts
D) customs classifications
E) duties