Which of the Following Best Matches the Description

Which of the following best matches the description?
-Biome which is dominated by grass,and in which trees are rare.

A) phytoplankton
B) littoral zone
C) desert
D) pioneer community
E) grassland
F) boreal forest
G) pelagic
H) tundra
I) none of above
J) benthic
K) deciduous forest
L) biochemical oxygen demand
M) periphyton
N) marsh
O) savanna
P) euphotic