What is the purpose of the pre-defined exclusions included with Smart Event R76?

What is the purpose of the pre-defined exclusions included with Smart Event R76?

A.
To avoid incorrect event generation by the default IPS event definition; a scenario that may occur
in deployments that include Security Gateways of versions prior to R71.

B.
To allow Smart Event R76 to function properly with all other R71 devices.

C.
To give samples of how to write your own exclusion.

D.
As a base for starting and building exclusions.