The following is a snippet from a Terraform configuration file: Which, when validated, results in the following error: Fill in the blank in the error message with the correct string from the list belo

'version' is a provider meta-argument used to pin provider versions and is unrelated to the error produced by a missing or invalid alias in a multi-provider configuration.

'multi' is not a valid Terraform provider configuration argument or a keyword that appears in Terraform validation errors.

'label' is not a valid provider configuration argument; the correct term for distinguishing multiple instances of the same provider is alias.

When a Terraform configuration uses multiple instances of the same provider (for example, targeting multiple AWS regions), each additional provider block must include an alias argument to give it a unique identifier. The validation error shown occurs when a resource or module references a provider configuration by alias but the alias value is missing or incorrectly specified in the provider block.