The correct answer is the following.
Contemporary legislative branch responded to factions by making decisions that benefit the whole country, to all the citizens, not only the members of a faction.
We are referring to Federalist 10.
A faction is formed by a group of people with personal agendas that have a particular interest. They only work for the benefit of their faction or against other factions. Sometimes they stepped onto others in order to get what they wanted. That is why people like James Madison wanted to form a Republic. To look for an entire nation, for all people´s necessities. He believed that with the creation of a Republic, factions could be controlled.