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

Which of the following classes is one valid superclass of 'regulation of transforming growth factor beta2 production'?

A. (3R)-hydroxyacyl-CoA dehydrogenase (NAD+) activity
B. regulation of transforming growth factor beta production
C. (RS)-1-benzyl-1,2,3,4-tetrahydroisoquinoline N-methyltransferase activity
D. 1,2-alpha-L-fucosidase activity

Answer: regulation of transforming growth factor beta production