A third type of citizen could vote and practive commerce, but could not hold office or marry
I believe the answer is: Gaining control of Paris and forcing a change in the monarchy.
The revolutionaries planned to do this by eliminating Charles X , (who succeeded king louis after he was executed by his own people) . Eliminating Charles X from the government marked the end of monarch system in France, and changed it to popular sovereignty. Leaders of france was elected through democratic election after this event.
The answer you are looking for is C. 1885/1906
Hope this helps :D