What is the total capacity, in GB, required for the backup target to accommodate the backups?

You are designing a cloud backup solution. Consider the following requirements when sizing the backup

target:

-Total amount of data to be backed up = 2 TB (2000 GB)

-Full backup once a week

-Retention period for full backups = 2 months

-Daily incremental backups (assuming an average 10% change in data)

-Retention period for incremental backups = 1 month

-No Compression or deduplication

-Number of backup copies = 1

What is the total capacity, in GB, required for the backup target to accommodate the backups?
A . 13, 200
B . 16, 000
C . 21, 200
D . 26, 400