Task: Class Definition Understanding (ontology: Food_Agriculture/Crop_Ontology)

Which of the following definitions best describes 'Stem minor diameter - 2nd internode'?

A. Minor diameter (ie the shortest diameter of an eliptical section) of the narrower portion of the second elongated internode from the base with the leaf sheath
B. The arrangement of primary branches on the panicle axis, grouped into whorls or individually on alternate sides
C. Describes the presence of rhizomes, stolons and/or tubers in the mature plant
D. Angle of inclination of the base of the main culm from vertical

Answer: Minor diameter (ie the shortest diameter of an eliptical section) of the narrower portion of the second elongated internode from the base with the leaf sheath