Duverger’s law states that: a. A political system that only has two major political parties is more reflective of and responsible to voters’ preferences.
b. A political system is only really a two-party system if other parties beyond the main two are legally prohibited.
c. Unless a political system adopts strict majoritarian requirements for winning elections, the system will drift into a multiparty democracy.
d. A political system with single-member districts and plurality rule elections will tend to result in a two-party system.