A SysOps administrator configured AWS Backup to capture snapshots from a single Amazon EC2 instance that has one Amazon Elastic Block Store (AmazonEBS) volume a...

A SysOps administrator configured AWS Backup to capture snapshots from a single Amazon EC2 instance that has one Amazon Elastic Block Store (AmazonEBS) volume attached. On the first snapshot, the EBS volume has 10 GiB of data. On the second snapshot, the EBS volume still contains 10 GiB of data, but 4GiB have changed. On the third snapshot, 2 GiB of data have been added to the volume, for a total of 12 GiB.
How much total storage is required to store these snapshots?

A. 12 GiB B. 16 GiB C. 26 GiB D. 32 GiB