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

After reasoning over the ontology, which class is one valid inferred class for the instance 'Arctic front'? Context: A polar front between the deep, cold Arctic air and the shallower, warmer polar air of northern latitudes on Earth.

A. low atmospheric level
B. ozone layer
C. weather front
D. free atmosphere

Answer: weather front