问题如下：
Exchange-based derivatives are designed to
选项：
A.be traded easily at a relatively low transaction cost
be a perfect fit hedge
C.avoid basis risk
reduce counterparty credit risk
解释：
D.
reduce counterparty credit risk
你好请问这个在哪一段视频提到过
NO.PZ2020021002000053问题如下Exchange-baserivatives are signeto A.traeasily a relatively low transaction cost B.a perfefit hee C.avoibasis risk recounterparty cret risk is correct..recounterparty cret risk中文解析场内交易的衍生品，都是以交易所作为中央对手方，这样可以降低交易者面临的信用风险。本题选 为什么A不对？场内交易不是会容易一点，而且相对成本会比较低吗？
NO.PZ2020021002000053 a perfefit hee avoibasis risk recounterparty cret risk is correct.. recounterparty cret risk如题如题如题如意如题
NO.PZ2020021002000053 B怎么翻译，怎么判断正不正确
为什么Exchange-baserivatives 可以降低交易对手风险？
