Provide your best answer for the following question. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The question is: Which of the following statements best explains why earthquakes occur more frequently in California than in Massachusetts?
California is located on the boundary of two crustal plates, but Massachusetts is not.
California is located along the Pacific Ring of Fire, where tectonic plates collide and create frequent seismic activity. Massachusetts is located in the