The correct answer is B) It provided a racial justification for conquering nonwhite peoples.
Social Darwinism impacted New Imperialism in that It provided a racial justification for conquering nonwhite peoples.
We can say that Social Darwinism applies to Imperialism in the concept of "white man's burden."
This meant that white people considered they were a better and most advanced race and they had the right to colonize indigenous people.
The concept is taken from the poem of the same name, written by English author Rudyard Kipling. in 1899, in the times when the United States had won the Spanish-America War, and as a result of this, the US took possession of Guam, Puerto Rico, and the Philippines, that were part of the Spanish monarchy.
At that time, Europeans sadly believed that they were a more evolved race who deserved to take over others. That is why Social Darwinism is considered to be imperialistic and racist.