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

Which of the following classes is one valid superclass of 'negative regulation of butyryl-CoA catabolic process to butyrate'?

A. (4S)-4-hydroxy-5-phosphonooxypentane-2,3-dione isomerase activity
B. negative regulation of fatty acid biosynthetic process
C. 1,3-beta-D-glucan synthase activity
D. 10-formyltetrahydrofolate catabolic process

Answer: negative regulation of fatty acid biosynthetic process