In CloudFormation, If You Want to Map an Amazon Elastic

In CloudFormation, if you want to map an Amazon Elastic Block Store to an Amazon EC2 instance, _________.

A) you reference the logical IDs to associate the block stores with the instance
B) you reference the physical IDs of the instance along with the resource type
C) you reference the instance IDs of the block store along with the resource properties
D) you reference the physical IDs of both the block stores and the instance