The Belarus-Lithuania consequent border not only represents an isogloss boundary, but it's also where the modern-day Heartland/Rimland theories meet... or as some call it, the "New Iron Curtain." That said, what type of boundary would this family and friend-separating border BEST represent below? A. definitional boundary
B. Natural/physical boundary
C. demarcated boundary
D. open boundary
E. delimited boundary