Can i have some help on this one

the answer is a) high entry costs

du boi was considered a radical because he wanted the immediate end for segregation. the biggest different between him and booker t. washington is that, even though washington believed that segregation should be considered illegal, he did not believe at all that a law was needed to keep blacks away from whites and that this would be something natural (to have the races apart) for a long time until society adjusted, while du boi believe that agitation was the only way to end segregation.

c) they desired to show their great power through the splendor of their royal courts.

11 answer : spain

12 answer : france

13answer: the treaty of versailles

14 : "cash-and-carry" / neutrality act of 1939

15: answer the vietnam war affected the attitude of americans toward future conflicts around the world in that americans have been "less" willing to intervene inthe affairs of other countries, since the vietnam war has widely been viewed as a major mistake.