Answer:
In 1915, The Atlantic Monthly carried an essay by Du Bois, "The African Roots of the War", which consolidated Du Bois's ideas on capitalism and race. In it, he argued that the scramble for Africa was at the root of World War I.
Explanation:
Answer:
A and D are both the answer of your question but I prefer A
The answer is
A. By leading settlers across the Appalachians.
Hope this helped :)
If you meant Denton Cooley, he was the first person to implant an artificial heart in 1969.