Correct Answer: (d) Savanna
Solution:Tropical grass fields are found amid equatorial evergreen forests and hot desert areas. Examples of such grass field are as-Llanos, Campos and Savanna. Temperate grass fields are stretched across the region of temperate climate. Example of these grasslands are Prairies, Pampas, Steppes, Veld and Downs. Selvas (Selva) are tropical evergreen rainforest in Amazon Basin. Thus, option (a) is not correctly matched while other options are correctly matched.