What is the purpose of the pre-defined exclusions included with SmartEvent R75?

What is the purpose of the pre-defined exclusions included with SmartEvent R75?

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 SmartEvent R75 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.