Im pretty sure but not a hundred percsnt sure, I believe it is c, but it might be b.
Pausanias killed Philip the Second. Hope this helped! :)
C.) To prevent East Germans from escaping West Germany.
<span>During an unrestricted submarine warfare, one of the German U-boats had sunk the British passenger ship ,the Lusitania, at great loss of life. Public outcry in the U.S. led to America declaring war on Germany.</span>