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

Which of the following definitions best describes 'sea ice floe'?

A. A sea ice floe which is inflexible and thicker than nilas.
B. A sea ice floe which has a rounded or circular shape and raised rims.
C. An ice floe which is formed from frozen sea water, and floats upon the surface of a marine water body.
D. A sea ice floe which is thin, elastic, continuous, and of a transparent gray color, which results from the freezing of new ice.

Answer: An ice floe which is formed from frozen sea water, and floats upon the surface of a marine water body.