Parallel lines in space are coplanar.
A.
always
B.
sometimes
C.
never
A. Always
The correct answer is A. "always." Parallel lines in space are indeed coplanar.
To understand why this is the case, let's break down the key concepts involved.
Parallel lines are lines in a two-dimensional or three-dimensional space that never intersect. In other words, they maintain a constant distance between each other at all points.
On the other hand, coplanar lines or objects are situated on the same plane. A plane is a flat, two-dimensional surface that extends indefinitely in all directions.
In three-dimensional space, any two parallel lines will lie within the same plane. This is because a plane can be thought of as an infinitely stacked stack of two-dimensional sheets, and parallel lines can be considered as lying on two of these sheets that are never going to intersect.
Therefore, parallel lines in space are always coplanar.