I need help with these questions when looking at this postcard:

identifying the three main leaders depicted in the postcard.
Identifying the symbols used in the representation to denote the country that brokered the Portsmouth Peace Treaty.
And explaining the causes of the Russo-Japanese war.

If the imperial dynasty had continued to rule china, it is most likely that a) the economy would have improved rather than weakened b) european nations would have gotten more of a foothold in china c) revolutionary groups would not have gained any power in the country d) communism would not have received support among the poor