Russia. We had nukes aimed at each other in countries near each other
The Tsar was related to the British Royal family. if he lost his power they'd lose thier influence.
The answer is B. The radio was a source of information in both the 1920s and the 1930s.
The aspect of the scientific revolution that would support the interpretation that it was more important than either the Renaissance or the reformation is that it brought advanced technology (medicine and navigation) better than reformation which caused religious wars (thirty years and roses war)