Final answer:
Marisol drew parallel lines, which are defined as lines in a plane that remain the same distance apart and never intersect, perfectly describing her observation.
Step-by-step explanation:
Marisol drew two lines on her paper and noticed that the distance between any point on line 1 and line 2 is always the same. This description best fits the definition of parallel lines. Parallel lines are two lines in a plane that do not intersect or touch each other at any point, no matter how far they are extended on both ends. In contrast, perpendicular lines intersect at a 90° angle, concentric circles are circles with a common center, and transversal lines intersect two or more lines at different points. Linear perspective in art uses the principle of parallel lines to create the illusion of depth on a flat surface, where parallel lines seem to converge as they recede into the distance. An example of this is provided by the application of orthogonal lines in Perugino's painting, where they meet on the horizon line at the vanishing point.