What Is the Most Readily Observable Change in the Seafloor

Multiple Choice

What is the most readily observable change in the seafloor as it moves away from the position of the mid- ocean ridges?

A) It gets deeper and smoother as it cools off, contracts, and gets buried by sediments.
B) The rugged ridge topography is eroded smooth by strong, deep ocean currents.
C) It gets covered by deep water biologic communities to make seafloor reef systems.
D) Violent large earthquakes cause the ridge system to collapse upon itself generating large tsunamis.