Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

Which of the following statements regarding commodity derivatives is correct?
Option A:The primary commodity derivatives are futures.
Option B:Commodities are subject to a set of well-defined risk factors.
Option C:Commodity traders and financial traders today are distinct groups within the financial world.

Answer: A