The correct answer is A.
George F. Kennan was an American diplomat and historian who has a supporter of the containment strategy for the design of the relationship between the US and communism, and therefore with the URSS. His ideas inspired significant policies such as the Truman Doctrine.
The policy of containment governed foreign regulations between the US and the URSS during the Cold War era. It consisted on giving response and limiting each of the moves undertaken by the URSS aiming to enhance communist influence in Eastern Europe, China, Korea, Africa, Vietnam, and Latin America.
The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The Netherlands was more democratic than most 17th-century European nations in that in those years, the Netherlands was formed by seven provinces under one confederation. People from each providence elected their rulers and the provinces were independentist but decently related to the other provinces.
In 1588, these providences accepted to form the Republic of United Netherlands, and this decision made the nation stronger, making the Netherlands a superpower in Europe, in a time when European monarchies and absolutist kings dominated many lands in the continent and abroad.
1) A Heliocentric universe is centered around the Sun.
2) A Geocentric universe is centered around the Earth.
They brought the slaves there to grow sugar.