Answer – B
The AWS Documentation mentions the following
An Amazon Machine Image (AMI) provides the information required to launch an instance, which is a virtual server in the cloud. You specify an AMI when you launch an instance, and you can launch as many instances from the AMI as you need. You can also launch instances from as many different AMIs as you need.
For more information on Amazon Machine Images, please refer to the following link:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AMIs.html