Geometry

The correct description of a line is D.a straight path of points that goes on and on in two directions.

Here's an analysis of each option:

A.an endless flat surface: This description pertains to a plane. A plane is a two-dimensional flat surface that extends infinitely in all directions. It is not a line, so this option is incorrect.

B.an exact location in space: This defines a point. A point is a dimensionless entity that represents a specific position in space and has no length, width, or thickness. It is not a line, so this option is wrong.

C.lines that never intersect: This ...