One of your EC2 instance is reporting an unhealthy system status check. However, this is not something you should have to monitor and repair on your own. How might you automate the repair of the system status check failure in an AWS environment? Choose the correct answer from the options given below

Answer options:

A.Create CloudWatch alarms for StatuscheckFailed_System metrics and select EC2 action-Recover the EC2 instance
B.Write a script that queries the EC2 API for each EC2 instance status check
C.Write a script that periodically shuts down and starts EC2 instances based on certain stats.
D.Implement a third party monitoring tool.

Answer – A
Using Amazon CloudWatch alarm actions, you can create alarms that automatically stop, terminate, reboot, or recover your EC2 instances. You can use the stop or terminate actions to help you save money when you no longer need an instance to be running. You can use the reboot and recover actions to automatically reboot those instances or recover them onto new hardware if a system impairment occurs.
For more information on using alarm actions, please refer to the below link:
http://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/UsingAlarmActions.html