Which HCP Terraform feature is recommended when you want to use the same cloud provider...

HCP Terraform variable sets are specifically designed to define reusable Terraform or environment variables and assign them to multiple workspaces or projects. HashiCorp documentation explicitly identifies provider credentials as a typical variable-set use case: rather than entering the same credential variables independently in every workspace, administrators can create one variable set and apply it to the required workspaces. VCS integration connects workspaces to source-control repositories and can trigger Terraform runs, but it does not provide centralized credential sharing. The terraform_remote_state data source is used to consume root-module output values from another Terraform state and is unrelated to credential distribution. Therefore, A is the correct answer. For current production environments, HashiCorp also recommends dynamic provider credentials where supported because they reduce the security risks associated with long-lived static credentials.