A、Because Washington D. C. lies in the district of Columbia. B、Because there is a state named Washington in America. C、Because

W: We are now in Washington D.C., the capital city of America.
M: It must be the political centre of America.
W: That’s for sure. People name it Washington D.C. since it lies in the district of Columbia. You know there is also a state named Washington in America. But it is in the Northwest of our country.
M: I think this city’s name must be connected with President Washington.
W: Yes. George Washington has been highly respected by the American people. To show their admiration and love for President Washington, they name their capital city Washington D.C.
M: Oh, I see.
W: Look, there is the Washington Monument. It is the highest needle shaped building in the world. The height is 55 feet.
M: Will we visit the Library of Congress?
W: Yes. The Library of Congress is the largest Library in the world. The glass ceiling makes the library very bright.
M: Your interpretation is so helpful.
6. Q: Why did people name this city Washington D. C.?