How Did the Russo-Japanese War Come to an End

How did the Russo-Japanese war come to an end?

A) Japan forced Russia to surrender.
B) Russia forced Japan to surrender.
C) Theodore Roosevelt mediated the conflict and negotiated the Treaty of Portsmouth between them.
D) After fighting to a stalemate, they agreed to return to the same status as before the war.
E) The two nations signed the Treaty of Paris.