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

Which of the following classes is one valid superclass of 'pharyngobranchial 1 cartilage'?

A. 4th arch mesenchyme from neural crest
B. 1st arch mesenchyme
C. pharyngobranchial cartilage
D. 3rd arch mesenchyme from neural crest

Answer: pharyngobranchial cartilage