What is the main topic of the passageA．The role of

单项选择题

Questions 41 to 44 are based on the following passage: Washington D.C. was the first city in history to be created solely for the purpose of governance.Following the Revolution, members of Congress had hotly debated the question of a permanenthome for themselves and for departments, such as the Treasury, the Patent Office, and so on, whicheven the sketchiest of centralgovernment would feel obliged to establish. In 1790, largely in order to put an end to congressionalbickering, George Washington was charged with selecting a site for the newly designated federaldistrict. Not much to anyone’s surprise but to the disappointment of many, he chose a tract of landon the banks of the Potomac River,a few miles upstream from his beloved plantation, MountVernon. The District of Columbia was taken in part from Virginia and in part from Maryland. At the timeit was laid out, its hundred square miles consisted of gently rolling hills, some under cultivation andthe rest heavily wooded, with a number of creeks and much swampy land along the Potomac. Thereis now a section of Washington that is commonly referred to as Foggy Bottom; that section bore thesame nickname a hundred and eighty years ago. Two port cities, Alexandria and Georgetown,flourished within sight of the new capital and gave it access by ship to the most important cities ofthe infant nation~harleston, Baltimore, Philadelphia, New York, Newport, Salem, and Portsmouth--and also to the far-off ports of England and the Continent.

What is the main topic of the passage

A．The role of George Washington in the American Revolution
B．The first years of the United Slates Congress
C．The governing of the federal district
D．The founding of Washington, D.C.