idk how to answer this my guess is B. or C.
Answer:
Ur answer is in the above attachment
The seismic waves that shake the ground in a vertical fashion are Rayleigh waves-surface waves.
Rayleigh waves-surface waves move in an elliptical motion. They can be both vertical and horizontal component of motion in the direction of wave propagation. They are caused by earthquakes.
The asthenosphere is weaker and less rigid than the overlying lithosphere.
