which command should he run?

A user has configured Auto Scaling with 3 instances. The user had created a new AMI after
updating one of the instances. If the user wants to terminate two specific instances to ensure that
Auto Scaling launches an instances with the new launch configuration, which command should he
run?

A.
as-delete-instance-in-auto-scaling-group <Instance ID> –no-decrement-desired-capacity

B.
as-terminate-instance-in-auto-scaling-group <Instance ID> –update-desired-capacity

C.
as-terminate-instance-in-auto-scaling-group <Instance ID> –decrement-desired-capacity

D.
as-terminate-instance-in-auto-scaling-group <Instance ID> –no-decrement-desired-capacity

Explanation:
The Auto Scaling command as-terminate-instance-in-auto-scaling-group <Instance ID> will
terminate the
specific instance ID. The user is required to specify the parameter as –no-decrement-desiredcapacity to
ensure that it launches a new instance from the launch config after terminating the instance. If the
user
specifies the parameter –decrement-desired-capacity then Auto Scaling will terminate the instance
and

decrease the desired capacity by 1.