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

After reasoning, which of the following classes is one valid superclass of 'nucleotide diphosphokinase activity'?

A. negative regulation of cardiac neural crest cell migration involved in outflow tract morphogenesis
B. tauropine dehydrogenase activity
C. protein kinase A binding
D. catalytic activity

Answer: catalytic activity