Task: Class Definition Understanding (ontology: Sciences/Biology)

Which of the following definitions best describes 'centroquartal bone'?

A. A tarsal bone that is formed from the fusion of the central and 4th tarsal bones.
B. A tarsal bone that connected to a hindlimb zeugopod skeleton.
C. Distal-most centrale when two are present.
D. The proximal-most rectangular cartilage or bone when two centralelia are present.

Answer: A tarsal bone that is formed from the fusion of the central and 4th tarsal bones.