Triple

Target entity: D.C.–Maryland border
Context triple: [Friendship Heights station, locatedNear, D.C.–Maryland border]

• A. District of Columbia–Maryland border chosen
  The District of Columbia–Maryland border is the boundary line separating Washington, D.C. from the state of Maryland, running through both urban and natural areas in the region.
• B. Potomac, Maryland
  Potomac, Maryland is an affluent suburban community in Montgomery County just outside Washington, D.C., known for its large estates, excellent schools, and proximity to scenic Potomac River parks and trails.
• C. Fort Washington, Maryland
  Fort Washington, Maryland is a suburban community in the Washington, D.C. metropolitan area known for its historic fort, residential neighborhoods, and location along the Potomac River.
• D. Southeast Washington, D.C.
  Southeast Washington, D.C. is a quadrant of the U.S. capital city known for its historic neighborhoods, including Capitol Hill, as well as major federal landmarks and rapidly redeveloping residential and commercial areas.
• E. Maryland–West Virginia boundary (traditional)
  The Maryland–West Virginia boundary (traditional) is the historic state line in the central Appalachian region whose course was long defined by early colonial surveys and landmarks such as the Fairfax Stone.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.