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

Which of the following classes is one valid superclass of '2.01 main shoot and axillary shoots visible at one node stage'?

A. 2 formation of axillary shoot stage
B. N second mitotic division stage in germinating pollen
C. 1 main shoot growth stage
D. abaxial nucellar projection

Answer: 2 formation of axillary shoot stage