The only correct answer can be statement C.
The British and the America colonists work together to defeat the French in the French and Indian War, showing that statement A cannot be correct.
One result of the French and Indian War was France giving up a large amount of territory to the British. This included a significant part of modern day Canada. This shows that statement B is wrong.
Statement D is also incorrect because the French lost land.
This shows how only statement C. can be correct.
The point of the cold war was to see what nation could prove to have better technology.
Answer- the arms race was so important because it helped fuel the cold war the cold war was based off the arms race because nations were simultaneously producing technology better than eachother or trying to prove to eachother that if another country could do it so could they. The cold war was a fight between the U.S and the soviet union proving eachothers nuclear power trying to threaten eachother. Both nations were stockpiling weapons, and spending billions to show their technological advancement in nuclear weapons.
You can move things around to make it more simple or straightforward but thats about it