The most logical and well-reasoned set of statements is:
Residents of Washington, DC, are U.S. citizens who are denied representation in Congress because Washington, DC, is not a state. Representation is a right of all citizens that our founding fathers fought for. So, Washington, DC, should be made a state.
This argument is coherent and presents a clear rationale. It establishes a factual premise (residents of DC are denied representation) and connects it to a principle (representation is a right) before concluding that statehood would address the issue. The other arguments either have weaker logical connections or questionable conclusions.