Which action can be taken to accomplish this?
Create a separate Availability Zone to host the resources.
Create a separate VPC to host the resources.
Create a placement group to host the resources.
Create an AWS Direct Connect connection between the company and AWS.
Explanations:
Availability Zones are designed for high availability and fault tolerance, not for isolation. They share the same underlying infrastructure.
Creating a separate VPC (Virtual Private Cloud) provides an isolated network environment within AWS, ensuring security and control over resources.
A placement group is used for high-performance computing and resource placement, not for creating isolated environments.
AWS Direct Connect provides a dedicated network connection to AWS, but it does not create an isolated environment within AWS itself.
I draft that the answer is:
Create a separate VPC to host the resources.