Which of the following is entirely the responsibility of AWS, according to the AWS snared responsibility model?

Explanations:

Security awareness and training is the responsibility of the customer, as they must educate their users about security best practices and ensure compliance with organizational policies.

The development of an IAM password policy is the responsibility of the customer, who must define the policies that govern user access and permissions.

Patching of the guest operating system is the responsibility of the customer, as they are in control of their virtual machines and must ensure they are kept up to date with security patches.

Physical and environmental controls are entirely the responsibility of AWS, as these controls pertain to the physical data centers where AWS services are hosted. AWS manages the physical security measures necessary to protect its infrastructure.