You are presented with the question "What can be caused by a faulting of the earth's crust?" and the following answer choices: 
- a hurricane
 - a hail storm
 - waves
 - graptolites
 - a tsunami
 - loose soil
 - river
 - erosion

Now knowing that faulting of rock in Earth 's crust causes earthquakes and earthquakes can cause a tsunami, choose the best answer.


 

     a tsunami    