Manila is the capital of the Phillipines
Body waves are seismic waves that travel through the body of a medium.
Surface waves are seismic waves that travel along the surface of a medium and have a strong effect near the surface of the medium than it has in the interior.
The Baltic states are on the eastern edge of the Baltic sea. The correct option among all the options that are given in the question is the first option or option "a". Estonia, Latvia and Lithuania are parts of the Baltic states. I hope that this is the answer that has come to your great help.