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

Which of the following classes is one valid superclass of '(1S,9R,12R,13S)-13-hydroxy-1,12-dimethyl-5,10-dioxatetracyclo[7.6.1.02,7.012,16]hexadeca-2,7,14-triene-4,11-dione'?

A. ((13)C)carbon dioxide
B. ((2-bromo-4-methylphenyl){6-[(4-{[(2R)-3-(dimethylamino)-2-hydroxypropyl]oxy}phenyl)amino]pyrimidin-4-yl}amino)acetonitrile
C. ((2-bromo-4-methylphenyl){6-[(4-{[(2S)-3-(dimethylamino)-2-hydroxypropyl]oxy}phenyl)amino]pyrimidin-4-yl}amino)acetonitrile
D. organooxygen compound

Answer: organooxygen compound