Popular sovereignty means that (3 points)
officials only make laws that are approved by people educated in law
independence is not granted by a ruler but agreed upon by the people
people who receive the most attention from others should have power
government authority comes from the people and is subject to their will

Popular sovereignty means that government authority comes from the people and is subject to their will.

Popular sovereignty implies "that the legal and effective residence of the power of command of a social group is found and exercised in and by the universality of citizens", in particular in the democratic states. Thus, universal suffrage becomes a fundamental right and the citizen's condition is the same for everyone regardless of any other consideration, except for the limitations of age or judgment.

d) iowa i believe is the answer

confederacy: supported slavery, believed states should be able to nullify federal laws, supported low tariffs

union: everything else