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

Which of the following definitions best describes 'crypt of Lieberkuhn of colon'?

A. A vein that is part of the placenta.
B. An intestinal crypt that is located in the appendix.
C. The chemical reactions and pathways involving galactosylceramides, any compound formed by the replacement of the glycosidic hydroxyl group of a cyclic form of galactose by a ceramide group.
D. An intestinal crypt that is located in the colon. The colonic crypts of Lieberkühn are straight and unbranched and lined largely with goblet cells.

Answer: An intestinal crypt that is located in the colon. The colonic crypts of Lieberkühn are straight and unbranched and lined largely with goblet cells.