Respuesta :
The Answer Is D... On December 10, 1906, Theodore Roosevelt became the first American to win a Nobel Prize. Roosevelt was Awarded the Nobel Peace Prize for his work surrounding the Treaty Of Portsmouth, which ended the Russo- Japanese War.
(D) For the Treaty of Portsmouth.
The Treaty of Portsmouth, signed between Japan and Russia in September 1905, was the treaty that formally set the terms that ended the Russo-Japanese War (1904–05), in which Russia recognized Japan as the dominant power in Korea. In such negotiations, the American President Theodore Roosevelt was an important key to mediate and finally end the conflict.
This made him become the first American President to ever win a Nobel Prize for Peace the following year.