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

After reasoning, which of the following classes is one valid superclass of 'phyllome lamina crena'?

A. cardinal part of multi-tissue plant structure
B. pollen tube cell
C. upper floret of sessile spikelet of ear
D. leaf substomatal cavity

Answer: cardinal part of multi-tissue plant structure