Correct Answer: CAWS Trusted Advisor provides checks and recommendations for best practices in cost optimization, security, fault tolerance, performance, and service quotas. To access the full capabilities of AWS Trusted Advisor, an AWS Business Support plan is required, as it includes access to the complete set of Trusted Advisor checks, unlimited case submissions, and specific support from AWS support associates. This combination ensures that a company can fully utilize the checks and recommendations provided by AWS Trusted Advisor to meet their operational needs in the specified areas.