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

Which of the following classes is one valid superclass of '1-vinylnaphthalene'?

A. ((18)O)water
B. ( -)-1-hydroxybybetaochlamic acid
C. ( Z)-6-benzylidene-3-hydroxymethyl-1,4-dimethyl-3-methylsulfanylpiperazine-2,5-dione
D. vinylnaphthalene

Answer: vinylnaphthalene