That each pillow meets quality standard
Slowed technological progress.
Answer:
Over 30 nations declared war between 1914 and 1918. The majority joined on the side of the Allies, including Serbia, Russia, France, Britain, Italy and the United States. They were opposed by Germany, Austria-Hungary, Bulgaria and the Ottoman Empire, who together formed the Central Powers.
Explanation:
C. Market conditions and the invention of the cotton gin