Which AWS service helps protect against DDoS attacks?

Explanations:

AWS Shield is a managed DDoS protection service that safeguards applications running on AWS.

Amazon Inspector is a security assessment service that helps improve the security of applications, but it does not provide DDoS protection.

Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity, but it does not specifically address DDoS attacks.

Amazon Detective is a service that helps analyze security data and investigate security issues, but it does not provide DDoS protection.