Answer:
The Answer is option B. Albert Einstein.
Explanation:
Albert Einstein wrote a letter to F.D. Roosevelt on Aug 2, 1939. In it, he warned the president about the possible nuclear capability that the Germans may have. Two German Scientists had shattered the atom in 1938. This was a lot sooner than Einstein had expected. Later when the news reached the United States in January 1939, American scientists rushed to duplicate their experiments. Being a staunch pacifist, Einstein did not want his knowledge to be used for war. In fact, a long time before the Nazi’s came to power