Vibration During an Earthquake

Vibration during an earthquake

A) always results in the development of a cliff at Earth's surface due to movement on a fault.
B) creates large open gashes in the Earth, which can swallow automobiles.
C) causes wet clay to become firmer; thus, when siting a house in an earthquake-prone region, it is best to build it over a landfill containing wet clay.
D) is usually most intense when the surface waves arrive.