Nylon wire doesn't have an end point unless you cut it and make it have one. A tip of a needle represents a point so it's not the answer. The piece of paper can represent a line segment, but not a line itself. Lastly, a knot on the thread does not represent a line, since the knot would look like a point if it's at the end of the thread.
Answers & Comments
Answer:
A. Nylon Wire
Explanation:
Nylon wire doesn't have an end point unless you cut it and make it have one. A tip of a needle represents a point so it's not the answer. The piece of paper can represent a line segment, but not a line itself. Lastly, a knot on the thread does not represent a line, since the knot would look like a point if it's at the end of the thread.