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

Which of the following classes is one valid superclass of 'N(6)-capryl-L-lysine residue'?

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

Answer: N(6)-acyl-L-lysine residue