Task: Class Definition Understanding (ontology: Earth_Environment/EnvironmentOntology)

Which of the following definitions best describes 'polar biome'?

A. A biome which is subject to polar climatic conditions.
B. A desert ecosystem which is in its climactic successional state.
C. A biome which is subject to subapline altitudinal conditions.
D. A biome which is subject to temperate climatic conditions.

Answer: A biome which is subject to polar climatic conditions.