A developer is deploying an application in the AWS Cloud by using AWS CloudFormation. The application will connect to an existing Amazon RDS database. The hostname of the RDS database is stored in AWS Systems Manager Parameter Store as a plaintext value. The developer needs to incorporate the database hostname into the CloudFormation template to initialize the application when the stack is created.
How should the developer reference the parameter that contains the database hostname?

A. Use the ssm dynamic reference.
B. Use the Ref intrinsic function.
C. Use the Fn::ImportValue intrinsic function.
D. Use the ssm-secure dynamic reference.