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

Which of the following classes is one valid superclass of '4,4,4-trifluoro-N-[[(3R,9R,10S)-12-[(2R)-1-hydroxypropan-2-yl]-16-(methanesulfonamido)-3,10-dimethyl-13-oxo-2,8-dioxa-12-azabicyclo[12.4.0]octadeca-1(14),15,17-trien-9-yl]methyl]-N-methylbutanamide'?

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

Answer: azamacrocycle