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

Which of the following classes is one valid superclass of '(R)-3-Hydroxyhexanoyl-[acp]'?

A. ( Z)-6-benzylidene-3-hydroxymethyl-1,4-dimethyl-3-methylsulfanylpiperazine-2,5-dione
B. (3R)-3-hydroxyacyl-[acyl-carrier-protein]
C. ((18)O)water
D. ( -)-1-hydroxybybetaochlamic acid

Answer: (3R)-3-hydroxyacyl-[acyl-carrier-protein]