A SysOps Administrator Has an AWS Lambda Function That Stops

Multiple Choice

A SysOps Administrator has an AWS Lambda function that stops all Amazon EC2 instances in a test environment at night and on the weekend. Stopping instances causes some servers to become corrupt due to the nature of the applications running on them. What can the SysOps Administrator use to identify these EC2 instances?

A) AWS Config
B) Amazon EC2 termination protection
C) Resource tagging
D) Amazon CloudWatch