Explanation

The correct answer is B. AWS Account Owner.

Key Points:

• AWS Account Owner has complete administrative control over all resources in their AWS account by default
• This includes full access to:
  • All AWS services and resources
  • Billing and account management
  • IAM (Identity and Access Management) permissions
  • Security configurations

Why other options are incorrect:

• A. AWS Support Team - AWS Support personnel do not have administrative access to customer accounts unless explicitly granted permission for support purposes
• C. AWS Security Team - AWS security teams manage AWS infrastructure security, not customer account resources
• D. AWS Technical Account Manager (TAM) - TAMs provide technical guidance and support but do not have administrative control over customer accounts

Important Note:

The AWS Account Owner is responsible for managing IAM roles and permissions to delegate access to other users as needed, but they retain the ultimate administrative authority over the account.