Question 872Navigation General

The correct answer is B) earthquake on the ocean's floor. A tsunami is a large, powerful wave or series of waves caused by a sudden displacement of water, typically due to an earthquake on the ocean floor. The vertical movement of the seafloor during an undersea earthquake is the primary driver of tsunami generation. This sudden displacement of water creates a wave that radiates outward from the epicenter. The other options are incorrect because they do not accurately describe the primary cause of a tsunami.