Task: Class Relation Understanding (ontology: Food_Agriculture/PlantOntology)

Which of the following classes is one valid superclass of 'petal parenchyma'?

A. LP.07 seven leaves visible stage
B. parenchyma
C. B enlarged microsporocyte stage
D. IE.03 3/4 of inflorescence emerged from flag leaf sheath stage

Answer: parenchyma