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

Which of the following definitions best describes 'Node dry matter content'?

A. Protein content of whole grain.
B. the concept. Node rank and time of observation must be provided when using this trait. Node stands here for node of the main shoot phytomer, located below the internode under study.
C. the concept. Internode rank and time of observation must be provided when using this trait. Internode stands here for internode of the main shoot.
D. Proportion of vitreous endosperm.

Answer: the concept. Node rank and time of observation must be provided when using this trait. Node stands here for node of the main shoot phytomer, located below the internode under study.