Answer:When a group of people gather for common practice, activities and interests, they are make up society. Such people start to exchange experiences and views on interests, activities and practices, they can associate, work on, improve and create a community of common interests and preferences. When society's development over common interests reaches a high level, then a highly developed society, which in this way leaves a certain significance and trace in history, is a civilization.
Explanation:
Free trade<span> is the economic policy of not discriminating against imports from and exports to foreign jurisdictions. Buyers and sellers from separate economies may voluntarily </span>trade<span> without the domestic government applying tariffs, quotas, subsidies or prohibitions on their goods and services.</span>
The iron curtain was like a curtain. It separated parts of Europe and was hard to escape the communism.
I think that the answer is a. and c. and d. because that is what my teacher told me....so yeah I hope this helped you