What Do These Things Have in Common: Paleomagnetism, Seafloor Spreading

Multiple Choice

What do these things have in common: Paleomagnetism, seafloor spreading, Pangaea, Wadati-Benioff zones, transform faults, fracture zones, seamount chains, Pacific hotspots.

A) They are used to study earthquakes.
B) They are involved with plate tectonics.
C) They are used to investigate the potential for undersea mining and mineral resource exploitation.
D) They are used to predict earthquake activity and warn people of imminent danger.