D. Powers shared between the Federal and State governments.
Concurrent powers are the powers that are shared by the Federal government with the States.
The most important of these is the power to tax. Both the federal and state governments have the ability to tax.
The best option will be the C. Railroads made the rapid movement of produce and goods into many markets possible.
Because Railroads basically were the key point to national business and economic growth. Eliminating the needs for long and weary trips, while also founding and fueling other soon-to-be huge business industries, such as iron, coal, copper, machinery, etc., railroads made "rapid movement of produce and goods into many markets possible."
B. Be Informed. A good voter should always have a clear idea of the situation at hand to make sure their vote is fair and what they actually want.
