问题
单项选择题
Kelly, CFA, want to buy ETFs that invest in index futures contracts and other derivatives, which of the following types of risk is unique to it, compared with other exchange traded funds ( ETFs )（）
A. Market risk.
B. Counterpart credit risk.
C. Tracking error risk.
答案
参考答案：B
解析：
Only those exchange traded funds that invest in index futures or other derivatives assume counterpart credit risk.