Which term contributed to the jazz age?

Roaring Twenties is the term contributed to the Jazz age. It was the time which was in between the end of the world war and the beginning of great depression.

Explanation:

Jazz age is a period where in people set aside old conventions and embraced modernism. Jazz music is a king music genre which was introduced during the Harlem Renaissance. It had a kind of strong and lively rhythm which allured the Americans . Jazz is the music genre that does not belong to one race or culture.

Harlem renaissance saw many African American poets and many jazz musicians were on the upfront singing their heart out and all their songs revolved around slavery and the consequences of it which was heart touching and a fact which made many to realize the pain of discrimination.

the answer wold be b) travel among nations should be regulated by an international organization