It allowed the South to make their own rules and just reinforced the fact that slavery was not allowed in the North
The main purpose of the international court and the international law are to prevent solving any conflict arising among the countries from escalating to an armed coflict which would likely cause some causalities.
Thus, the correct answer is A. a means to arbitrate disputes without conflict - where "without conflict" is meant as "without armed conflict"
A few small scale inventions are the cotton gin and the Telegraph