Final answer:
The San Andreas Fault in California is a strike-slip fault, which is a type of transform boundary between the Pacific plate and the North American plate, where they slide past each other. The correct option is A.
Step-by-step explanation:
The San Andreas Fault in California is an example of a transform boundary where the Pacific plate and the North American plate slide past each other. This kind of junction is called a strike-slip fault. The Pacific plate, to the west, is moving northward relative to the North American plate which is on the east side.
Over time, this motion can lead to significant geological changes, such as Los Angeles potentially becoming an island off the coast of San Francisco after several million years.
Major slippages along the San Andreas Fault are known to cause extremely destructive earthquakes. It illustrates the dynamic nature of Earth's lithosphere where plates are in constant motion, moving millimeters to a few centimeters per year, and interacting at different types of plate boundaries, including divergent, convergent, and transform boundaries.