C. It makes more sense and I need points
I believe the answer is C Cotton and Tobacco
A synergy between iron and steel, railroads and coal developed at the beginning of the Second Industrial Revolution. Railroads allowed cheap transportation of materials and products, which in turn led to cheap rails to build more roads. Railroads also benefited from cheap coal for their steam locomotives.
Your answer is C. agreed to by Congress in 1777; ratified in 1781
B. He founded the Mauryan Empire through the uniting of all the kingdoms
