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

Which of the following definitions best describes 'Length of central axis'?

A. Report the age when 50% palms have open inflorescences, measured from time of field planting
B. Measure the girth or circumference of the stem at 1.5m above the ground level using a measuring tape (tape strapped around the stem).
C. Measure inflorescence central axis from the first spike to the end.
D. Measure the girth or circumference of the stalk just below the first spikelets.

Answer: Measure inflorescence central axis from the first spike to the end.