What is true about a Pre-Block ACL configured when setting up your sensor to perform IP Blocking?

What is true about a Pre-Block ACL configured when setting up your sensor to perform IP Blocking?

A.
The Pre-Block ACL is overwritten when a blocking action is initiatied by the sensor.

B.
You can not configure a Pre-Block ACL when configuring IP Blocking on your sensor.

C.
The Pre-Block ACL entries override the blocking ACL entries generated by the sensor.

D.
The blocking ACL entries generated by the sensor override the Pre-Block ACL entries.

E.
The Pre-Block ACL is replaced by the Post-Block ACL when a blocking action is initiated by the sensor.