As conductor 1 moves on the rails through the field $B$, it generates a motional emf, driving a current through the closed circuit (rails + conductor 2). By Lenz's law, the induced current opposes the change, and the resulting force on conductor 2, $\vec F=I\vec L\times\vec B$, acts in the direction that tends to reduce the relative motion between the two conductors (opposing the increase in circuit area/flux) — i.e., it acts to pull conductor 2 in the SAME direction that conductor 1 is moving.

(The exact axis label among the given options depends on the specific geometry/orientation shown in the original figure, which was not fully legible in the extracted question — apply this reasoning to the actual figure to pick the matching direction.)