问题如下：
Financial market utilities have several
lines of defense in managing participant risk. The following statements are
about these methods, which of the followings is NOT correct?
选项：
A. FMUs use criteria like size
and creditworthiness to constrain its direct members.
FMUs have direct exposure
with first-and second-tier banks
FMUs periodically monitor their
participants settlement positions and margin collateral.
FMUs mutualize the default risk, thereby
dispersing credit risk and potential losses, across a broad number of entities.
解释：
考点：对Risk Management, Measurement and
Monitoring Tools for FMUs的理解
答案：B
解析：
FMUs只与符合条件的First-tier
bank有直接交易，Second-tier banks的交易与First-tier
banks完成。
D是什么意思
