B. Most Chinese lived in rural areas and worked on farms for little or no pay.
"The speech by President Reagan at the Berlin Wall" was considered the end of the Cold War, since the Berlin Wall was considered the most physically divisive element of the war.
South Africa is the answer
The agricultural improvements that are not correctly paired with their inventor or discoverer is :
Seed drill - Charles Townsend
Seed drill was Invented by Jethro Tull, not Charles Townsend
hope this helps