Select the letter of the correct answer The Article primarily discusses
A
the huge addition to the tunnel system under the U. S. Capitol that opened in 2008 and
features exhibition space, a gift shop, and more
how the U. S. Capitol has a subway system that runs along 3,100 feet (945 meters) of
B
track and is reserved for people who work in the Capitol Building
с
how the U. S. Capitol needed more space for the additional lawmakers representing new
states after the country had expanded
the elaborate tunnel system under the U. S. Capitol that serves the operational needs of
D
lawmakers and staff while also keeping them safe