这个知识点在讲义上有吗

问题如下：

Question Dark pools are best described as:

选项：

A.trading venues that exercise little regulatory authority over their subscribers.

B.operated by investment dealers that specialize in high-risk securities.

C.certain groups of similar assets that issue securities representing shared ownership.

解释：

A is correct. Dark pools are trading venues that function like exchanges but do not exercise regulatory authority over their subscribers except with respect to the conduct of their trading in those venues.

B is incorrect. Dark pools may be operated by investment dealers but do not necessarily trade high risk securities.

C is incorrect. This is the definition of pooled investment vehicles