True, the President is America's "Chief Diplomat." True, the legislative branch of government is the law-making branch. False, the exact number of individuals each member of the House of Representatives represents varies by district, True Senators are elected for six years and may be re-elected as often as the people wish to vote for them, False, Congress makes the laws but the Executive Branch has the power to veto them.
A. everyone should own the property of a society
Though that answer is a bit vague. It helps to understand what Marx meant by "property" (not your toothbrush, rather, the machines of labor, factories, capital, etc).
It is the last one because hat was one thing that split the country
The answer is the United States v. Windsor