To my knowledge, the correct answer among all of the given choices is C.) Steam. If I'm not mistaken, this was the time that more trains came into use.
I hope this is the answer you were looking for and that it helps!! :)
Answer: The time period is 1300-1600
<span>Pax Romana, ( Latin: “Roman Peace”) a state of
comparative tranquillity throughout the Mediterranean world from the
reign of Augustus (27 bce–14 ce) to the reign of Marcus Aurelius (161
–180 ce). Augustus laid the foundation for this period of concord, which
also extended to North Africa and Persia</span>
It left fewer british troops to fight in north america
Well, here are some key elements:
Racism
National Socialist Program
Euthanasia and Eugenics with respect to 'Racial Hygiene'
Anti-Marxism, Anti-Communism, Anti-Bolshevism
The rejection of democracy.
I hope this helps!
