It is the opinion of the greatest writers, that a very extensive country cannot be governed on democratical principles, on any other plan, than a confederation of a number of small republics, possessing all the powers of internal government, but united in the management of their foreign and general concerns.
—"Centinel", Letter to the Freemen of Pennsylvania

According to this quote, which issue would make ruling too hard for the government under the Constitution?
A.
the separation of powers
B.
the size of the country
C.
executive power
D.
political factions