Respuesta :

C. tsunami 
because the rock underneath the surface of the ocean are caused by an earthquake, which creates a pull and vibrations of waves which cause a tsunami.

An occurrence of a tsunami is an event that is ten associated with an earthquake.

More than 80% of earthquake happens underwater and this occasionally triggers tsunami because of the forces and energy generated under the water rock.

Hence, the occurrence of a tsunami is an event that is ten associated with an earthquake.

Therefore, the Option C is correct.

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