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Which one of the following is a possible food chain that could be found in grassland inhabited by hawks, frogs, snakes, mice and grasshoppers?
A.Grass→grasshoppers→frogs→snakes.
B.Grass→ grasshoppers→frogs→mice.
C.Grass→snakes→mice→hawks
D.Grass→ grasshoppers→ hawks→snakes.