The true statement based on the figure is
B. ∠ 3 ≅ ∠ 5
What are alternate interior angles?
Alternate interior angles are a pair of angles that lie on opposite sides of a transversal line (line t) and are formed by two lines that are intersected by the transversal.
These angles are on the inner sides of the transversal and are not adjacent to each other.
The important property of alternate interior angles used here is that they are congruent (have equal measures) when the lines intersected by the transversal are parallel. In this case line m and line n