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

Which of the following definitions best describes 'Days to first anthesis'?

A. Length of middle finger or lobe of matured leaf
B. Exposing of the pistil per plot of any female flower
C. Growth habit of young stem
D. Number of constrictions on the storage root

Answer: Exposing of the pistil per plot of any female flower