To show that \( \triangle GHI \cong \triangle LKJ \) using rigid transformations and the SSS (Side-Side-Side) triangle congruence criterion, it's essential to align corresponding points and sides of the triangles.
Among the options provided, the best choice for the first transformation is:
Translate \( \triangle GHI \) along a vector that takes point \( G \) to point \( L \).
This choice directly aligns one vertex of triangle \( GHI \) (point \( G \)) with the corresponding vertex of triangle \( LKJ \) (point \( L \)), creating a clear foundation for the next rigid transformations to align the remaining points and sides. After this translation, you can subsequently translate to align sides according to the SSS criterion.