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

Which of the following definitions best describes 'colon endothelium'?

A. A blood vessel endothelium that is part of a respiratory system [Automatically generated definition].
B. An epithelium that is part of a caecum.
C. A bone that is part of a lower leg [Automatically generated definition].
D. Vascular endothelium found in colon blood vessels.

Answer: Vascular endothelium found in colon blood vessels.