The states of Maryland, Virginia, and North Carolina are bordering states between the
North and the South, and they are
considered to be which of the following?
A. neutral states
B. upper South states
C. part of the Union army

b

Explanation:

It is a popular belief that the Border States-Delaware, Kentucky, Maryland, Missouri, and West Virginia--comprised the Civil War's middle ground, a region of moderation lying between the warring North and South. This was, after all, the home of great compromisers such as Kentucky's Henry Clay, a U.S. senator who crafted important measures that prevented civil war in the 1820s and 1850s.

thomas jefferson is the answer