The Seafloor Spreading Hypothesis Predicts That the Mid-Ocean Ridges Should

Multiple Choice

The seafloor spreading hypothesis predicts that the mid-ocean ridges should be locations of rising asthenosphere. This prediction is supported by seismic data that indicates

A) faster seismic wave velocities at the trenches.
B) slower seismic wave velocities at the trenches.
C) faster seismic wave velocities at the ridges.
D) slower seismic wave velocities at the ridges.