What does the video demonstrate about warfare during World War I? a. Trenches could contain dozens of soldiers. b. Trenches were fortified with brick walls. c. Troops did not utilize helmets or protective clothing. d. Troops lacked communications equipment. Tranches could contain dozens of soldiers.

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.

Ithink it’s a : ) good luck on whatever