Race consciousness became a strong issue in europe as a result of:
a. world war i
b. world war ii
c. colonial expansion
d. the first amendment

c. colonial expansion

Explanation:

Around 1600, Europeans exploited 49 percent of the globe but only 32 percent of the world's land. By the end of the eighteenth century, their knowledge had doubled: 83% of the globe and 60% of the land. This colonial exploitation made the Europeans known to various peoples with different cultures and appearances, this gave them a racial consciousness that they did not have before colonial expansion.

c.

worked constantly and gave many sincere speeches about the importance of independence

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".