In which city is the U. S. capitol Building located?
A. washington D. C.
B. Philadelaphia, PA
C. New york, Ny
D. Boston, MA

The U.S. Capitol building is in Washington DC.

It’s home to the Senate and House of Representatives, so if it helps you, you can try remembering that all three branches of the legislative system are in Washington DC?

done

explanation:

they wanted the u.s. to fight on the side of the central powers.