The Free Soilers came to Kansas in the 1800's. They came for several reasons, but the main reason was to ensure that Kansas became a free state. The Free Soilers didn't stay long as a political party and eventually got picked up into the Republican party.
B- To ensure that Kansas voted to become a free state.
Their main purpose was <em>to oppose the expansion of slavery into the Western territories,</em> arguing that free men on free soil constituted a morally and economically superior system to slavery. It also worked to remove existing laws that discriminated against freed African American in states like Ohio.
So now, all that remained for Archimedes to do was to compare the volume of the crown to the volume of the amount of gold that Hiero had given the goldsmith