D. It was the first program to send a human to the moon. Project Gemini was chartered by President John F. Kennedy and NASA's second program in human spaceflight program. Project Gemini's goal is to make space travel techniques for the Apollo mission that would later begin.
C. the closing of the First Bank of the United States
Answer:
Social classes included leaders, merchants, religious leaders, labourers, free citizens and the slaves. The leaders were people who founded a community or settlement, their lineage naturally became the new leaders of the communities as the years went by.
Explanation:
Social classes included leaders, merchants, religious leaders, labourers, free citizens and the slaves.
The name for this idea is "Domino Effect" - this is a theory that says that if one country falls to Communism the neighboring countries would also fall to Communism, much like pieces of Dominos fall when a neighboring piece fell.
This theory was important in the Foreign politics of the US during the cold war.