For a region R, the set of points that are adjacent to the complement of R is called as ________
A. Boundary
B. Border
C. Contour
D. All of the Mentioned
Answer:A
For a region R, the set of points that are adjacent to the complement of R is called as ________
A. Boundary B. Border C. Contour D. All of the Mentioned
Explanation: The words boundary, border and contour mean the same set.