Good morning!
I believe the correct answer is C. Large land mass. It can't be any others because a continent is a large part of land, for example, Europe and America are continents. A large body of water would be an ocean, it's not a measure of distance, because that would be meters, kilometers, etc. It's not a measurement of time because that would be measured in days, months, years..
Hope this helps! ☺♥
People tend to concentrate on the coast for numerous reasons (ring of fire is a lot of coastline).
Answer:
Earthquakes and Tsunamis In the deep ocean, sensors monitor volume displacements and seabed deformation. Increasing activity can predict an earthquake. ... These seabed sensors monitor seismic events beneath the waves then transmit the alerts back to land via surface buoys for coastal tsunami alerts.
