Answer:
you did not include the choices, but heres a advantage:
usually research is already done, so it proves that it is able to do research on, therefore the historian can carry out more research.
Explanation:
He was acquitted of all charges by the senate
I'm pretty sure it was Ulysses S. Grant
Neither had more votes than the other, because each state had only one vote.
C because the president is controlled by the peapol. Hope this helps