What makes a line parallel?

Question

a. A parallel line is the infinite section of a line between two points on that line
b. A parallel line is a straight figure that has no thickness and extends infinitely in two opposite directions
c. A parallel line is a straight line that always remains the same distance from another line and never intersects it
d. A parallel line is a line that intersects another line at a 90-degree angle

Answer 1

The correct answer is:

c. A parallel line is a straight line that always remains the same distance from another line and never intersects it.

This definition accurately describes parallel lines, which are defined as lines in a plane that do not meet; they are consistently the same distance apart along their entire length.