The answer to the question given is:
<span>better mass production techniques
</span>Better mass production techniques BEST explains the increased totals for all cars made in the 1920s. Henry Ford, together with <span>General Motors and Chrysler emerging as the “Big Three” auto companies, </span> innovated mass-production techniques that became standard, by the 1920s.
Answer:
C. The assassination of Archduke Franz Ferdinand in Sarajevo
Explanation:
As this assassination was done in Serbian territory, the Austrian-Hungarian government was extremely angered and used this event to bring Serbia into a fold. Obviously, Serbia did not accept the terms of Austria-Hungary and instead became allies with the Russian Empire.
A rising population equates to a larger labor force. In other words, the more people there are, the more people can be working in factories making products and in fields producing resources.