Final answer:
A pasture is not considered a surrogate grassland, whereas hayfields, prairies, and cereal crop fields can be considered as such because they mimic the plant community structure of natural grasslands.
Step-by-step explanation:
The type of land that would NOT be considered a surrogate grassland is C) Pasture. Surrogate grasslands are areas that mimic grasslands but are not natural grassland ecosystems. A hayfield, a prairie, and a cereal crop field can be considered surrogate grasslands as they are managed environments that can resemble the plant community structure of natural grasslands. Pastures are areas of land where animals graze but are not specifically designed to mimic the structure of grasslands.