The country that borders Brazil, Bolivia, and Argentina is Paraguay.
The other country is Paraguay, which neighbors Bolivia to the southwest. Bolivia and Paraguay are the only two landlocked countries in South America.
Paraguay is located on the continent of South America. Argentina borders it to the south and southwest. Brazil borders it to the east and northeast. Bolivia borders Paraguay to the northwest. Because of its central location, it sometimes is referred to as 'Corazon de America' ['Heart of America'].
Peru, Bolivia, and Argentina all share borders with Chile.
If your question is which country in South America does not have an ocean along one of its borders, there are two...Bolivia and Paraguay.
The answere would be pargauy and it is in one of two countries that is landlocked in south America
Argentina borders east and Peru and Bolivia to the North.
The Plurinational State of Bolivia (Sorry for being a bit late)
The country is Paraguay.
Paraguay
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Paraguay