The answer is B) Difficulties that resulted from not having separate presidential and vice presidential election in the electoral college in the election of 1800. Before this change, they basically just chose the runner up president as a VP.
I think it D.
i hope this helped!
Explanation:
Russia and Japan were fighting over Korea, Manchuria, etc. Began in 1904, but neither side could gain a clear advantage and win. Both sent reps to Portsmouth, NH where T.Roosevelt mediated Treaty of New Hampshire in 1905. TR won the Nobel peace prize for his efforts, the 1st pres. to do so.
