C.) to divide the communist and democratic parts of Berlin
Explanation:
Khrushchev ordered a construction of the Berlin Wall because he wanted to separate the communist and the democratic parts of the city. The communists where well known fro putting on barriers, be it physical or political where their zones of interest were bordering the ones of their enemies. In order to stop the spread of the democratic ideas in their area and thus having social problems and unrest to deal with, the Soviets decided to to put a physical barrier, thus stopping the people to communicate, move between the two parts of the city, or even see each other.
It is job of the US federal government to conduct foreign policy and a nationwide defense policy that protects the lives of Americans, the country´s territory and its integrity, thus assuring national security.
