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.
A. Better machinery as industrial revolution took course between 1820- 1840
Providing supplies to American and Allied troops fighting the war in Europe, Africa, and the Pacific required the efforts of all Americans. At home, citizens contributed to the war effort by rationing consumer goods, recycling materials, purchasing war bonds, and working in war industries.
Hope that helps and feel free to ask me more questions :)
Brainliest??