The Following Questions Refer to the Excerpt Below

The following questions refer to the excerpt below.
"This measure was certainly undignified.It does not become a Congress that has been battling with the colossal artillery of impeachment to descend to throwing mud. Such conduct is neither royal,republican,nor democratic;it is simply boys' play.It isn't worthwhile to say that the reduction of the President's clerical force was made in the virtuous interest of retrenchment,for the stupidest of us all know better than that.Its moving spring was an unworthy and an ungraceful little spite.They might as well have estimated the capabilities of the Chief Magistrate's kitchen force,and discharged a cook or two.There is not any wisdom in this kind of warfare.The people cannot applaud it.Everybody is willing to see a fair stand-up fight between the President and his Congressional master,but nobody is willing to see either of them descend to scratching and hair-pulling.These parties stand for the United States.They represent the American nation,and it is not a nation that fights in that way."
Mark Twain,Chicago Republican,1868
-One goal of the political actions referenced here by Twain was to

A) restore (or halt the restoration of) slavery to the Southern states.
B) change the balance of power between the Congress and the presidency.
C) end American interventionism in foreign conflicts.
D) support the role of the Supreme Court in protecting civil rights.