What is the result of the establishment

This was an order issued during the civil war by president lincoln ending slavery in the confederate states

The major impact third parties have on presidential elections has been to.. a. encourage larger vote turnout b. recruiter leader from the democratic and republican party to run for president c. generate increased party identification among the electorate d. developing issues that are later adopted by the major political parties e. drawn off of votes from the major parties to throw election into the house representatives

Which country joined the allies because it was a rival of germany?