Maybe while we wait for the questioner to provide the options, we can do a little general discussion here about what it means to use a primary source. Primary sources are things that come from persons directly involved in the events or lives being studied. So, any diary entries or letters of George Washington himself would count as primary sources. So would any official proclamations or letters or government documents that came from Washington's pen as president. Or the testimony of contemporaries of his who lived or worked with him would also count as primary source accounts.
So if you're looking for a historian's use of primary sources, look for the ways in which he's using historical material directly connected to the life of the person being studied. In fact, if you were able to look at a set of the false teeth George Washington wore, that would be a primary source too. They have a set at the Mount Vernon home/museum. And by looking at those actual dentures, you'd see they weren't made out of wood like the old (false) story says!
States being able to issue their own paper money would lead to problems such as counterfeiting and people not being able to use money from a certain state in a different state.
The city was renamed Petrograd in 1914, at the beginning of World War I, because it sounded less German, was then named Leningrad after the death of Vladimir Lenin in 1924, and again became St. Petersburg in 1991 when the Soviet Union collapsed.
Because there is no table provided, let me enumerate the various methods of proposing changes to the constitution.
two-third of two congress houses vote a proposal to change the constitution
two third of the state legislature can ask congress to call for national convention to deliberate on the change.
