NO.PZ2018062007000096
问题如下：
Which of the following statements regarding commodity derivatives is correct?
选项：
A.
The primary commodity derivatives are futures.
B.
Commodities are subject to a set of well- defined risk factors.
C.
Commodity traders and financial traders today are distinct groups within the financial world.
解释：
A is correct. The primary commodity derivatives are futures, but forwards, swaps, and options are also used. B is incorrect because the commodity market is extremely large and subject to an almost unimaginable array of risks. C is incorrect because commodity and financial traders have become relatively homogeneous since the creation of financial futures. Historically, commodity traders and financial traders were quite different groups, and there used to be a tendency to think of the commodity world as somewhat separate from the financial world.
中文解析：
a选项，初级大宗商品衍生品是期货，但远期、掉期和期权也被使用。
B选项的意思是说大宗商品市场面对的风险因素是很明确的。大宗商品市场的风险来源非常复杂，有很多预想不到的维度的风险，用明确风险来描述是不准确的。B错。
自从金融期货出现以来，商品和金融交易员已经变得相对同质化。C错。
初级大宗商品衍生品是期货？or 主要的大宗商品衍生品是期货？
