Answer:
D) The San Andreas Fault
Step-by-step explanation:
The San Andreas fault is the expected potentially devastating mega-earthquake that, at some point, could hit the American West from a gigantic and famous crack called the San Andreas fault - the result of the movement of two tectonic plates that bring seismic instability to the region. This failure was the result of tectonic plates sliding one after the other.
The friction between these tectonic plates is responsible for frequent tremors in California, classified as one of the areas of greatest tectonic instability on the planet.
San Andreas is the largest of these cracks and potentially the most dangerous as it marks the boundary between the two largest tectonic plates on the planet.