Duverger’s law suggests that election systems based on single-member plurality districts and that require the winner to have the highest number of votes cast will tend toward a two-party system.
This implies that candidates can win the election by accumulating the highest votes but not necessarily winning the most votes in many areas.
On the other hand, Duverger concluded that proportional representation electoral systems often lead to multiparty systems.
The single-member plurality districts election system is used in places like the United States, Canada, United Kingdom, etc.
Hence, in this case, it is concluded that the correct answer is single-member plurality districts' election system affects the political landscape of a country.
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