Don't know how to work this problem out

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave

c is the correct answer hope this !

plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.