Answer :
Answer: B- a line segment
Step-by-step explanation:
In geometry, a line is a set of all points passing through it including its end points . It is a part of a line. It is bounded by two distinct end points, and contains every point on the line between its endpoints.
It doesn't have any vertex, it is a one dimensional geometrical figure.
The distance of a line bound by two points is defined as a line segment.