Respuesta :
Answer:
A. They can only occur in water
and
C. Underwater landslides cause them
Explanation:
It might be tempting to put "We can predict them", but really, that isn't the case. We have high-tech machines that can sense the tremors of earthquakes, which cause tsunamis, but the general public can't predict a tsunami.
Also, I took the test and this was the result.