Since there is no statement included, here are the definitions for each of these.
Detente- This was the policy of relieving tensions between the United States and Soviet Union during the Cold War. This policy, implemented by US President Richard Nixon, helped to create positive relations between the two countries. This resulted in an increase in trade and a decrease in the probability of nuclear warfare.
Imperialism- This is a policy in which one country expands their political power through military action or diplomatic approaches. This results in one country controlling the social, political, and economic elements of another country or territory.
Containment- This Cold War policy was based on stopping the spread of communism to other countries besides the Soviet Union and their satellite nations.
Protectionism- This theory is based on protecting the interests of domestic businesses. In order to do this, a protectionist theory usually relies on tax imported goods. This increases the price of foreign goods, making it more likely that people will buy goods made in their own country.