The answer to your question is A.
The answer is the ratification of the 18th amendment.
<u>Answer:</u>
The statement "A conflict between the ideas of federalism and sectionalism" best describes the states' rights debate of the early and mid-1800s.
<u>Explanation</u>:
- Federalism refers to the system of working of government where there is division of power between the "national and state governments".
- The US constitution gave some power to the "national government" and to the "state governments".
- This form of system led to harmony and more understanding among all the states.
- Sectionalism refers to dividing of the nation into more sections and states and being loyal to their own sections rather than the nation as whole.
- This formed differences in the life style, social norms and political structures which caused havoc throughout the nation.