In the united states, central and state governments work together to make political, economic, and social decisions for all citizens. this form of government is called

This is called a federal republic. The states have their own laws that apply to them. They also have a set of federal laws that apply to all members of a federation. The United States are a federal republic because the government is a federal and nation wide, but the states have their own powers too.

Their solution was to tax the colonists. 

The correct answer is b