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

Which of the following definitions best describes 'Calculate standard deviation of spikelet'?

A. Measure the length of the first spikelet bearing fruits from 30 randomly selected palms. Calculate standard deviation.
B. Measure the length of the first spikelet bearing fruits from 30 randomly selected palms. Calculate mean.
C. Measure the height of 10 internodes of the stem, the measurement starting at 1.5m above the ground level, calculate mean from 30 randomly selected palms.
D. Measure petiole length from base to the most proximal leaflet from 30 randomly selected palms. Calculate standard deviation.

Answer: Measure the length of the first spikelet bearing fruits from 30 randomly selected palms. Calculate standard deviation.