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

After reasoning, which of the following classes is one valid superclass of 'acylagmatine amidase activity'?

A. fructan beta-fructosidase activity
B. catalytic activity
C. CCR2 chemokine receptor binding
D. rhamnogalacturonan II biosynthetic process

Answer: catalytic activity