D.,
A, B, and C have the solution of the system of Equations (2,1) But D has a solution of (1,2).
The Soviet Union suffered the most .
The Gupta Empire was best Known for its <span>(1) Advances in mathematics and medicine</span>
The American Revolution showed the benefit of home field advantage if you are willing to undertake atypical warfare.
In short, the revolution showed that the colonists knew the land that they were on, knew which locals supported them, and knew how to supply and get around the more professional British army.