C) The states required payment of poll tax and/or the passage of literary test to vote
Panama was the country the US invaded
As Lincoln debated what to do with Reconstruction, he wanted to make sure he stayed in line with "<span>1. The constitution," since Lincoln, unlike the Radical Republicans, wanted the nation to "heal" as quickly as possible instead of punishing the South. </span>
I believe there was a contest but I am not sure the answer to your first question.
D) They gained California and New Mexico