Answer:
B. They are regions where tectonic plates meet.
Step-by-step explanation:
Places, where tectonic plates meet, are most likely going to cause earthquakes, volcanoes, and etc. The reason for this is that when two tectonic plates meet, it is going to crash. When things crash, things are going to end up vibrating and smushed. In this case, it will be an earthquake, and when it is smushes, it will build or create a volcano.