Answer:
c.adults were poor back then,so they had to force their children to work
Ronald Reagan and Mikhail Gorbachev worked together to improve the relations between the US and USSR.
Gorbachev's policies surrounding Glasnost allowed for a more democratic Russia (and also eventually led to the collapse of the Soviets).
After the depression of the 1890's immigration jumped from a low of 3.5 million in that decade to a high of 9 million in the first decade of the new century
