The large and populated states.
People who worked in factories lived together in small houses that were full to the brim and the idea was to go work while another sleeps, and then you sleep when others work.
Answer:
What happened in 1968 Major News Stories include Dr. Christian Barnard performs the first successful heart transplant, Assassination of Martin Luther King Jr. , The first Big Mac goes on sale in McDonalds costing 49 cents, Boeing 747 made its maiden flight, Emergency 911 Telephone service is started in the USA, Hong Kong Flu pandemic, The Poor People's March on Washington, D.C, Vietnam US soldiers massacre men, women and children in My lai, Prague Spring in Czechoslovakia
The only correct answer is;
B) They locked workers out of the property and refused to pay them.
Hope this helps.