Looking at a globe or an adjusted flat map
I believe the answer is A
Talking, listening, hanging out.
The answer to this question is the second item in the choices which is "where older buildings were built on a thick layer of sediment". We know that seismic vibration is the sound or movement generated from the ground. This happening is unwanted and cannot be controlled. Once this occurs in higher magnitude it would cause great damage to our structure were buildings made of rock collapse.
Forced labor and debt bondage are of growing concern in the US and Western Europe.