The P- Wave Shadow Zone Is Largely the Result Of__________

Multiple Choice

The P- wave shadow zone is largely the result of__________ .

A) reflection of P waves from the inner core- outer core boundary
B) reflection of P waves at the boundary between the inner and outer cores
C) refraction of P waves deeper into the core upon crossing the mantle- outer core boundary
D) lower P- wave velocities in the mantle than in the crust