题目问的什么没看懂

问题如下：

Give three reasons why a CCP requires the OTC deriva-tives it clears to be traded actively.

选项：

解释：

It needs to value transactions at least once a day. It needs to unwind a member’s position expeditiously if the member defaults. It is not worth developing the systems to clear a particular transaction type if members do not trade it very often. The CCP uses trading data to set initial margin.