Technology is probably the answer that you need. Other answers such as internet, cell phones, and airplanes are suitable answers as well.
The labor movement in the United States grew out of the need to protect the common interest of workers.For those in the industrial sector, organized labor unions fought for better wages, reasonable hours and safer working conditions
ANSWER: B ASIA
Explanation:
ASIA IS THE POPULOUS CONTINENT ON THE EARTH CHINA WAS THE COUNTRY WITH THE LARGEST POPULATION. IN MID-2019 ABOUT 1.4 BILLION PEOPLE LIVED IN CHINA.