Moving a slinky® up and down will create a disturbance that is parallel to the wave motion. perpedicular to the wave motion. in the same direction as the wave motion. in a circular motion.

The answer is Perpendicular to the wave motion

Explanation:

Moving a Slinky up and down will create a disturbance that is PERPENDICULAR TO THE WAVE MOTION.

Transverse was are generally characterized by particles moving perpendicular to the wave motion, thus a slinky connected across a plane horizontally, when it is moved up and down, it will create a disturbance that is perpendicular to the wave motion.

Also if the first coil connecting the slinky is vibrated, the slinky will move up and down (i.e the individual coil will be displaced perpendicular to the wave motion).

I hope this helps.