Eighth graders have been studying about the theory of plate tectonics. Of the following statements, which ones would be the BEST conclusion to the lesson?
1. There are small amounts of movement at the plates' edges
2. There is no geologic activity located at the plates' edges
3. Geologic activity causes stress to build and storage of energy at the edges
4. Geologic stress and stored energy is released as earthquakes at the edges
А1 and 4

B 2 and 3
1 and 3
D 3 and 4