Your company is looking for a solution to manage backups for their workloads running in AWS. They are interested in the AWS Backup service, but are trying to determine the cost of the service.Which of the following factors would need you to look at to determine the actual cost of AWS Backup? (Select TWO)
选项：

A:The retention period.
B:The backup frequency.
C:The service(s) being protected,
D:The amount of storage used to store the backups