The Shadow Zone,in Which Seismic Waves from an Earthquake Can

Multiple Choice

The Shadow Zone,in which seismic waves from an earthquake can be detected only very faintly,is caused by

A) S and P waves being refracted at the boundary of Earth's core and P waves being absorbed by the core.
B) both P and S waves being refracted into Earth's core,thus concentrating the waves on the far side of Earth.
C) all seismic waves being absorbed by Earth's molten core,so that none reach the far side of Earth.
D) S and P waves being refracted at the boundary of Earth's core and S waves being absorbed by the core.