<em>It's A, Protects people's ideas</em>
Do you want vague details? Westward expansion was when the colonists began pushing West and migrating past the mountains further into Northern America. As this happened relationships with the Native Americans intensified as colonists began forcing more and more Native Americans off of their lands.
Hope this helps! (:
Answer:
Women in the workforce
Explanation:
This is process of elemenation for me. 19th amendment was passed in April of 1920. Women got more rights to vote, so that improved relationships with men. Prohabition also helped with that. in the 1920s, there was a spike form 24,000 a year in college to 160,000. Women's workforce started in 1930s.
The forging of large, powerful nations into "power-blocs" vying with each other for control, coupled with the emergence of extremely lethal weapons of war (machine guns, bombs, aircraft and nuclear weapons)
