Answer:
From WWII? GREAT BRITAIN.
Explanation:
Ever heard of the Battle of Britain?
Student movements
African-American college students got very involved in the Civil Rights movement of the 1960's. For example, four African-American college students started the sit-in protests at the Woolworth's lunch counter in North Carolina. This form of peaceful protest became extremely popular and resulted in the end of segregated seating at this Woolworth's facility.
Women's Liberation
One of the biggest developments of the women's liberation movement was the publishing of the book the <em>Feminine </em><em>Mystique </em>by Betty Friedan. This book has sold millions of copies and was known for its radical views. In this book, Friedan discusses how women should not be limited to the role of housewife. Rather, they should follow their own goals and do what they want to do instead of being pressured into societal norms.
Counterculture
The counterculture of the 1960's grew from the development of the Beatnik generation of the 1950's. This group was against organized religion and often experimented with drugs in order to alter their perception of reality.
There was tension in the politics of the nation which were largely due to differences in the economies of the North and the South. For the South, slavery was used as a labor source hence they supported slavery. The North on the other hand was opposed to slavery as it was largely urbanized. Different regions led to the creations of different economies.
I would say A but i am not 100% sure.
The open door policy was designed to open Japan to American trade and influence (The US was hungry for an imperial puppet).