what is the first transition state an instance enters a…

For AWS Auto Scaling, what is the first transition state an instance enters after leaving steady state when scaling in due
to health check failure or decreased load?

A.
Terminating

B.
Detaching

C.
Terminating:Wait

D.
EnteringStandby

Explanation:
When Auto Scaling responds to a scale in event, it terminates one or more instances. These instances are detached from
the Auto Scaling group and enter the Terminating state.
http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/AutoScalingGroupLifecycle.html