San Andreas fault is a transform fault- it means that the two plates are not getting closer and converging or getting away from each other and diverging but rather moving in different directions - the American part is moving South and the Pacific part is moving North.
Hello! Your correct answer is,
D) none of the above
Why? Because all of the above are human activities that can and have increased tsunami destruction.
Hope I helped, tell me if I'm wrong
Continuous deposition (or deposition)
It was caused by a very strong earthquake. Because of the strong tectonic movement, it had displacement plates and thus created a major wiped out among the cities of Sumatra and Sri Lanka