Answer:
D. surface wave
Explanation:
A) Transverse Waves
As the energy is propagated through the medium and then medium particles moves to and fro perpendicular to wave propagation then this is known as transverse waves.
B) Longitudinal waves
As energy is propagated through the medium and then medium particles oscillates in direction of wave propagation then it is known as longitudinal waves.
C) Primary waves
these waves are due to compression and expansion of medium and it can travel at high speed. It is moreover similar to longitudinal waves
D) Surface Waves
In these type of waves the disturbance or energy is propagated through the medium particles on the surface of the water in the shape of concentric circles.
So surface wave is characterized by circular motion
