A reverse fault is where the plates are deviding
A strike-slip fault is where the plates slide by each other but dont collide
so it would have to be ( A ) if there isnt a forth answer
The move because of the intense heat in the Earths core, that causes molten rock in the layer, called the mantle, to move. There are 4 different plates; collision, conservative, constructive and destructive. Hope this helped <3
Answer:
faults can cause sudden earthquakes when the tension of the tectonic plates build up and then releases