The species Ursus arctos, Ursus maritimus, and Ursus americanus are all members of the same genus. The classification of the three species supports which statement about them?

A. Members of all three species live in similar environments.
B. Members of all three species have similar size, shape, and body color.
C. The three species share many characteristics and are biologically related.
D. The three species are identical, but their members live in different environments.