You are creating a production mode Lambda function. Due to auditing compliance, your organization stated that production-grade code must not be modified during its execution unless the modification goes through a change process. For that, you decided to publish a version for PROD, create an alias, and use the alias ARN for invoking the Lambda function. However, your organization stated the code should not run if the version is $LATEST. How would you achieve this? (choose 2 options)

Answer options:

A.getFunctionVersion from Context object.
B.Get invokedLambdaARN from the event object and find out the version from it.
C.Use the AWS_LAMBDA_FUNCTION_VERSION environment variable.
D.Use the AWS_LAMBDA_FUNCTION_ALIAS environment variable.

Answer: A, C
For more information on environment variables available to Lambda functions, refer to documentation here.
https://docs.aws.amazon.com/lambda/latest/dg/env_variables.html
https://docs.aws.amazon.com/lambda/latest/dg/tutorial-env_cli.html
Option B is not correct. There is no parameter in any event source containing the ARN of the invoked Lambda function.
Option D is not correct. This is no environment variable for ALIAS.