A company has an AWS Cloud Format ion slack that is deployed in a single AWS account. The company has configured the stack to send event…

C Step 1: Reacting to CloudFormation Stack Events with EventBridge AWS CloudFormation emits events during the lifecycle of a stack, including the UPDATE_COMPLETE event after a successful stack update. You can use Amazon EventBridge to detect this event and trigger a specific action (such as invoking a Lambda function). Action: Create an EventBridge rule that listens for the UPDATE_COMPLETE event for the CloudFormation stack. Why: EventBridge allows you to automatically detect CloudFormation stack lifecycle events and take action based on them. Step 2: Invoking the Lambda Function After the EventBridge rule detects the UPDATE_COMPLETE event, it can invoke the pre-configured Lambda function to apply or update the tag on the specific CloudFormation stack instance. Action: Configure the EventBridge rule to invoke the Lambda function when the UPDATE_COMPLETE event occurs. Why: This automation ensures that the tag is applied immediately after a successful stack update without any manual intervention. Reference: AWS documentation on EventBridge Rules. This corresponds to Option C: Create an Amazon EventBridge rule that matches the UPDATE_COMPLETE event pattern for the instance status of the CloudFormation stack. Configure the rule to invoke the Lambda function.