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

Which of the following classes is one valid superclass of 'whole plant fruit ripening complete stage'?

A. whole plant fruit ripening stage
B. 4 root elongation stage
C. IE.03 3/4 of inflorescence emerged from flag leaf sheath stage
D. B enlarged microsporocyte stage

Answer: whole plant fruit ripening stage