The answer is b) Estate stratification.
This stratification system was a long-run result of feudalism since it fell under the same principles:
1) There's a social hierarchy in which there were a noble class and a peasant class.
2) Only the noble class could have land ownership, and the peasant (or serf) class must work it for the noble's usufruct.
This system of stratification was upheld not only by illustrated monarchies but also by modern nation-estates (like the U.S.), this is how it received the name of estate stratification.
The correct answer to this open question is the following.
Moscow is the capital city of Russia. It is very populated. Indeed it is the biggest city in Europe with more than 10,5 million citizens living there.
The last Russian census of 2010 provides information that says that Moscow and the metropolitan adjacent areas total 17 million people. Since the dissolution of the Soviet Union, Moscow has constantly grown year after year.
Moscow is the most important city in Russia, attracting tourists and businessmen from all over the world. It is a multicultural city that combines, culture, tradition, history, and modernity. A must-visiting place.
I'm not so sure but I think it's A
B..........................................................
Humans shouldn’t fidget with the course of nature, because it leads to more and more problems.