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

After reasoning, which of the following classes is one valid superclass of 'guanosine pentaphosphate catabolic process'?

A. phospholipase C-activating angiotensin-activated signaling pathway
B. spindle pole centrosome
C. posterior abdomen determination
D. phosphorus metabolic process

Answer: phosphorus metabolic process