Correct Answer: C
Explanation:
First, recall the definitions of the terms in the possible answer choices.
Collinear: Represents points that all fall on the same line.
Equidistance: Represents points that are the same length away from one another.
Parallel: In a plane, parallel lines are lines that will never intersect. This means they have the same slope but different intercepts.
Perpendicular: In a plane, perpendicular lines are lines that intersect by creating a 90o degree angle. This also means they have opposite sign, reciprocal slopes.
Therefore, the correct answer is collinear.