Option (B) is correct because tropical grasslands are also known as the savannas. It is a terrestrial biome that features vast open spaces consisting of scattered small shrubs and trees.

Option (A) is not correct because temperate grasslands are known as prairies in North America.

Option (C) is not correct because the Eurasian grasslands are known as steppes.

Option (D) is not correct because the appropriate answer is the savannas.