Task: Inferred Class Relation Reasoning (ontology: Food_Agriculture/PlantOntology)

After reasoning, which of the following classes is one valid superclass of 'C callose wall formation in pollen mother cells stage'?

A. shoot axis prickle
B. whole plant development stage
C. 2.07 main shoot and axillary shoots visible at seven nodes stage
D. mid rosette growth stage

Answer: whole plant development stage