Task: Inferred Instance Class Reasoning (ontology: Earth_Environment/EnvironmentOntology)

After reasoning over the ontology, which class is one valid inferred class for the instance 'Masai Xeric Grasslands and Shrublands Ecoregion'?

A. ecological province
B. ecoregion
C. nutricline within a water body
D. marine environmental zone

Answer: ecoregion