问题
单项选择题
By volume, the most widely used group of derivatives is the one with contracts written on which of the following types of underlying assets
A．
| A. Financial. |
B．
| B. Commodities. |
C．
| C. Energy-related. |
答案
参考答案：A
解析：The most widely used derivative contracts are written on underlying assets that are financial, such as Treasury instruments and stock indices.