Centralize IAM permissions and email distribution for the WebServices Team as efficiently as possible. What should you do?

Creating a Google Group for the WebServices Team is the most efficient solution. Google Groups allow you to centralize IAM permissions by assigning roles to the group, rather than to individual users. Any user added to the group automatically inherits the assigned permissions. This also efficiently handles email distribution, as the group itself can serve as a mailing list. Creating a G Suite domain or a new Cloud Identity domain is unnecessary and overly complex for this requirement. These options are for managing user identities and services across an entire organization, not just a team's permissions and email. Creating a custom IAM role is useful for fine-grained access control, but assigning it to individual team members doesn't centralize management; you'd still manage each member separately.