It’s D, the social contract
It shortened the travel time and distance and improved trade.
Though the 15th amendment highlighted race, color and previous condition of servitude, women felt gender should have been included in the amendment. They helped abolitionists gain rights so they felt they should too
The correct answer here is the option B.
The court system in the United States is hierarchical thus it follows a chain of command if you will, of supremacy. The highest legal authority in the United States is the United States Supreme Court which has the final say in the issues concerning the legality of the laws and the interpretation of the Constitution. Thus they hear appeals from the lower courts as the Supreme Court is the highest appellate court in the country.