Task: Inferred Class Relation Reasoning (ontology: Sciences/Biology)

After reasoning, which of the following classes is one valid superclass of '3-hydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione monooxygenase activity'?

A. biliberdin reductase (NAD+) activity
B. catalytic activity
C. obsolete avenastenone reductase activity
D. regulation of acetylcholine biosynthetic process

Answer: catalytic activity