Answer:
B
Explanation:
This is when the massive immigration influx from the 1880s-1930s started.
The touch down score is 100 and other factors that play the opposite side role
According to Frederick Jackson Turner, the change of a stable and civilized way of life in European cities, towards the change of life in the prairies, in wild territory, produced in the Colonists an emergence of the adventurous spirit, full of a new vitality , and formed that American spirit so different from the British. This meant that independence was necessary to develop self-sufficiency and individualism, to advance in a frontier and wild territory. However, over the years, he changed his point of view, and thought that it was necessary to return to a systematized and organized way of life, to ensure that resources would last.
Perestroika is a series of political and economic reforms in the late 1980s implemented by President Mikhail Gorbachev to improve the economy of the Soviet Union. The main objective of Perestroika was to make socialism function more competently in order to fulfill the needs of the Soviet people. Following this information, the correct option is: <em>C. restructuring of the Soviet political and economic system</em>. It is also important to quote that "Перестройка/Perestrojka" in english means "restructuring".
