those in the 15-40 age range became the primary workers
Answer:
Japan modernized its government and economy
Explanation:
after commodore Perry visited Japan he threatened them into trading with America and forced them to have to modernize their government
B. Public railroads for people who had carriages.
Answer:
When Kink Louis XVI was executed, these rulers became even more alarmed. Nobles who had left France were also warning those in other countries that the Revolution was likely to spread beyond France's borders. ... In response, European nations formed coalitions to intervene in the Revolution and later to defeat Napoleon.
Explanation:
B. They filled a need that other inventions could not: They provided the first form of electronic communication. plz mark brainliest