Creating a social security disability program was part of Lyndon B Johnson's "Great Society" vision.
Option: A
Explanation:
Lyndon B Johnson created a program of Great society vision where he included many of the agendas related to the social welfare like poverty elimination, wage reformation for poor workers, improved transportation systems and urban issues etc.
These are all included in his program of Great society vision. He wanted to reform society in a newly structure way so that the world can see the transformed society in a better way where everyone is treated equally no one is depriving from any social facilities.
The Berlin Airlift was a military operation for delivering supplies to people in West Berlin.
Trade barriers come in many forms. Quota is one. This is when a country sets a limit to the imported products. This is done for a number of reasons. One is because the government of the importing country wants to protect its domestic manufacturers. Other barriers or limitations are added costs such as tariffs, duties, and taxes.