A line segment on a graph would be any line that isn't continuous. It would have dots on the ends instead of arrows. Is that what you're asking?
I think the answer is B.
Because one of the factors that has prevented it from being a more unified country is its geography. It's rugged, mountainous. It's very difficult for any invading army to develop or control it.
Answer: in the other types of boundaries lithosphere plate is either created ie: (divergent plate boundaries where new oceanic crust is formed) while at convergent old oceanic crust is destroyed . But in the case of transform boundaries the plates slides past each other and lithosphere plate is neither created or destroyed . California San Andreas fault is a transform boundary.
Explanation: