What new opportunities did the 1920s do for women and african americans? what new limitations did this era impose?

The 1920's resulted in a change in opportunities for women and African Americans. During the 1920's, African American men and women became known for their musical and artistics talents thanks to the Harlem Renaissance. This era was considered a revival of black culture and saw the development of talents like Duke Ellington and Louis Armstrong. The popularity of jazz music allowed men like this to become famous on a national scale.

Along with this, women started to challenge traditional social norms. Instead of being seen strictly a housewife, women (especially flappers) were outgoing, went to speakeasies, and did things that were usually only done by men before this time.

c. troops marched forward in close formation against newer, more accurate weapons

imma say false because i dont know anything about this.