Answer:
The correct option is C.
Explanation:
From the given figure it is clear that in figure GHIJ and NMLK,



Since the sum of interior angles of a quadrilateral is 360 and three corresponding angles are congruent, therefore the fourth angle is also congruent.

Corresponding angles of similar figures are congruent. So,
Trapezoid GHIJ ~ Trapezoid NMLK
Therefore the correct option is C.