Answer:
Voltaire was a celebrity
Explanation:
He was very famous in his time, and he was never any of the other things
Theodore Roosevelt received the Nobel Peace prize for his work with japan and Russia.
So correct Option is B.
Answer:
The Manhattan project
Explanation:
The Manhattan project was a secret project that's developed by United States in 1942. The main goal of this project was to create the first weapon of mass destruction that utilize nuclear energy.
Initially, USA tried to keep this a secret from the Soviet Union.
But the project was leaked to the Soviet Union by Julius and Ethel Rosenberg who were recruited as Soviet's spy. Ethel's brother David Greenglass worked in Manhattan project and supplied Julius with the information.