Your company is deploying an application on AWS using Amazon EC2 instances. As part of the security compliance requirements, it's critical to ensure that operating system (OS) patches are regularly applied and that the server is protected against unauthorized access. Which of the following responsibilities fall under your company's purview according to the AWS shared responsibility model?
Environmental risk management for the hardware supporting your instances
Applying operating system patches to your instances
Virtualization infrastructure maintenance
Physical security of data center facilities where your instances are hosted