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

Which of the following classes is one valid superclass of 'mesenchyme from rhombencephalic neural crest'?

A. Actinopteri
B. AV node cell to bundle of His cell signaling
C. mesenchyme derived from head neural crest
D. 1st arch mandibular mesenchyme from neural crest

Answer: mesenchyme derived from head neural crest