The leader of Russia in World War II was Joseph Stalin.
I remember that, because he's not always russian around, he's stalin all the time. XD XD Sorry, that's a terrible pun.
<span>b. Glaciers pushed them out of their homeland.</span>
I would say all of them except for the third one.
The correct answer would be "suppressing anti-Austrian groups and publications".
However, while Austria did not demand that Serbia "accept responsibility for the assassination" of the archduke, they did demand the Serbia accept an inquiry on the matter, despite the fact that they were already conducting an internal investigation. Serbia did not accept this condition.