Which AWS service helps to achieve this automation?

A user is using the AWS EC2. The user wants to make so that when there is an issue in the EC2 server, such as
instance status failed, it should start a new instance in the user’s private cloud. Which AWS service helps to
achieve this automation?

A.
AWS CloudWatch + Cloudformation

B.
AWS CloudWatch + AWS AutoScaling + AWS ELB

C.
AWS CloudWatch + AWS VPC

D.
AWS CloudWatch + AWS SNS

Explanation:
Amazon SNS can deliver notifications by SMS text message or email to the Amazon Simple Queue Service (SQS.
queues or to any HTTP endpoint. The user can configure a web service (HTTP End point. in his data centre
which receives data and launches an instance in the private cloud. The user should configure the CloudWatch
alarm to send a notification to SNS when the “StatusCheckFailed” metric is true for the EC2 instance. The SNS

topic can be configured to send a notification to the user’s HTTP end point which launches an instance in the
private cloud.