Final answer:
Corresponding angles are sometimes equal when using the tracing-paper method.
Step-by-step explanation:
When using the tracing-paper method to compare the angle measures of corresponding angle pairs, it appears that b) They are sometimes equal. Corresponding angles are pairs of angles that are in the same position at the intersection of two lines when a third line (called a transversal) crosses them. While corresponding angles are not always equal, they are equal when the two lines being intersected by the transversal are parallel. In that case, the corresponding angles are congruent and have the same angle measure.