A SysOps administrator is notified that an Amazon EC2 instance has stopped responding. The AWS Management Console indicates that the system checks are failing.
What should the administrator do first to resolve this issue?

A. Reboot the EC2 instance so it can be launched on a new host.
B. Stop and then start the EC2 instance so that it can be launched on a new host.
C. Terminate the EC2 instance and relaunch it.
D. View the AWS CloudTrail log to investigate what changed on the EC2 instance.