The answer is 'B'.
Perestroika was a Soviet policy to make the economy more open to foreign competition and individual citizens.
Mikhail Gorbachev attempted to reconstruct the economic system of the Communist Party.
Example: Ending price controls
Glasnost refers to the government becoming more open.
Answer:
Due to economy and number of workers.
Explanation:
The colonial workers earn lower wages than Europeans because of the economy of the state as well as presence of large number of workers in the colony as compared to Europeans. Supply of materials plays a key role for its price. If the supply for a material increases, its price also decreases due to excess quantity. There are limited workers in the Europe and they have a strong economy due to which Europeans workers have high wages as compared to colonial workers.
Workers from the Eastern states were encouraged to come to Oklahoma during the early oil boom because they played it up as though it was a great life, the money was great, the area was great. Everything was to be had in Oklahoma and in the West versus struggling in the East.