What Pericles says in this speech is that a pattern of a constitution that does not imitate anyone is created, which means that it excludes the third option offered. It is further stressed that everyone, regardless of class or property, has the rights to equal justice, nor does the class decide on merit, to anyone capable of serving the state, thus excluding the first and second option.
The correct option is the fourth, because this constitution treats all citizens fairly, favors many instead of a few, and therefore is called democracy.