Generally speaking, it would be tat "b. They have helped provide more money for social services and welfare programs," that is not a characteristic of modern global corporations, since such corporations tend to be very "selfish" when it comes to their money.
Children used to work in factories due to child labor. The men would be off fighting in wars and the women would work at factories or stayed at home. With children they didn't have to get paid because of their age and were treated badly. That is why they were chosen to start working in factories.
The answer is falls. The quantity demanded falls. Hope this helps:)
The Berlin Airlift was one of the defining events of the Cold War. American and British cargo planes delivered over 2.3 million tons of supplies to the citizens of Berlin during a Soviet blockade of the city from June 1948 to May 1949.
