Why does the Klan have resurgence on popularity in the early 1900s

Explanation:

Although the KKK had reemerged in the South in 1915, it wasn’t until after the end of World War I that the organization experienced a national resurgence. Membership in the KKK skyrocketed from a few thousand to over 100,000 in a mere ten months.

Squared Local chapters of the KKK sprang up all over the country, and by the 1920s, it had become a truly national organization, with a formidable presence not just in the South, but in New England, the Midwest, and all across the northern United States.

tearing down the berlin wall.

i do believe its (d) it allowed the government to offer pioneers sixty acres of western land if they lived on it and made improvements to it.

explanation: signed into law in may 1862, the homestead act opened up settlement in the western united states, allowing any american, including freed slaves, to put in a claim for up to 160 free acres of federal land. by the end of the civil war, 15,000 homestead claims had been established, and more followed in the postwar years