Explanation:

Grasslands are diverse ecosystems found across different latitudes, and they have specific regional names. \nOption A: 'Prairies' are temperate grasslands primarily found in North America, particularly in the central United States and Canada. They are not low-latitude grasslands of South America. \nOption B: 'Pampas' are temperate grasslands located in South America, mainly in Argentina, Uruguay, and southern Brazil. While in South America, they are temperate, not low-latitude (tropical) grasslands. \nOption C: 'Llanos' (often spelled 'Llanos') are extensive tropical grasslands (low-latitude) found in the northern part of South America, primarily in Venezuela and Colombia. They are characterized by a hot, wet season and a dry season. Therefore, this option is correct. \nOption D: 'Steppes' are temperate grasslands found in Eurasia, stretching from Eastern Europe to Central Asia. They are not found in South America. \nTherefore, the correct term for low-latitude grasslands in South America is Llanos.