What is the difference between a situation and a policy when using the Take Action option?

A.
Take Action in a situation can write to the Universal Message Log, while Take Action in a policy
can only issue a command.

B.
Take Action in a situation uses the system administrator ID, and within a policy the User ID that
created the policy will be used when executing the Take Action.

C.
Take Action in a situation will only issue the command at the Managed System (agent) where the
situation became true, while Take Action in a policy can be executed at any managed system.

D.
Take Action in a situation can be issued at the Managed System Tivoli Enterprise Monitoring
Server, while in a policy the Take Action can be issued at the Hub Tivoli Enterprise Monitoring Server.