What is Washington warning against in the following excerpt “In contemplating the causes which may disturb our Union, it occurs as matter of serious concern that any ground should have been furnished for characterizing parties by geographical discriminations, Northern and Southern, Atlantic and Western; whence designing men may endeavor to excite a belief that there is a real difference of local interests and views”?

A. Slavery
B. Sectionalism
C. Foreign alliances
D. Political parties