Task: Class Definition Understanding (ontology: Business_Finance/Financial_Industry_Business_Ontology)

Which of the following definitions best describes 'grain commodity'?

A. agricultural resource that is a small, hard seed, of a food plant, especially of a cereal plant, such as wheat, corn, rye, oats, rice, and millet
B. investment vehicle that tracks a basket of commodities to measure their price and investment return performance
C. negotiable commodity including offset credits
D. agricultural resource derived from the flesh of an animal (especially a mammal), such as pork bellies

Answer: agricultural resource that is a small, hard seed, of a food plant, especially of a cereal plant, such as wheat, corn, rye, oats, rice, and millet