If I Had to say I wou;ld choose C because the swing era ran from 1935 though to 1946
The youth of the western world was celebrating the end of global economic depression and the approach of modern times during the 1930s and 40s with a riotous explosion of dance and music called Swing. However, in Germany a repressive fascist regime under Adolf Hitler tried to impose its iron will on the German people, and keep them isolated from any international movements that threatened to undermine Nazi philosophy.
Hipster is a slang term that first appeared in the 1940s, and was revived in the 1990s and 2000s often to describe types of young, recently-settled urban middle class