A company is using Amazon EC2 instances to host a web application. Which of the following actions is AWS responsible for in terms of security?
Patching the guest operating system of the EC2 instances.
Maintaining physical security of the data centers where the EC2 instances reside.
Configuring network access control lists (ACLs) for the EC2 instances.
Setting up encryption for data stored on the EC2 instance EBS volumes.