The correct answers are AWS Shield Standard (C) and AWS WAF (E). AWS Shield Standard is a managed DDoS protection service that safeguards web applications running on AWS by automatically detecting and mitigating DDoS attacks. AWS WAF (Web Application Firewall) is a service that provides protection against common web exploits and attacks, such as SQL injections and cross-site scripting, by allowing customers to create custom security rules. While AWS Shield Advanced (D) does offer more advanced DDoS protection, it was not one of the options provided in the question. VPC endpoint (A) and Virtual private gateway (B) are related to VPC networking and do not directly provide protection against the mentioned web exploits and DDoS attacks.