Using AWS CloudFormation, a developer needs to set a Lambda function timeout based on a template parameter named Environment. The template contains a mapping called EnvironmentData that stores timeout values per environment. Which intrinsic function should be used to set the Timeout from the mapping?

The !FindInMap intrinsic function is designed to retrieve a value from a mapping based on specified keys. In this scenario, EnvironmentData is the mapping name, !Ref Environment dynamically provides the top-level key (e.g., 'Dev', 'Prod'), and Timeout is the second-level key within that environment's data. This correctly extracts the timeout value. !GetAtt is used to retrieve an attribute from a resource, not a value from a mapping. !Select retrieves a single object from a list by index, which is not applicable here. !ForEach is not a valid CloudFormation intrinsic function for this purpose; it's typically used in programming languages for iteration.