What is the function of Copy Export within an IBM TS7760?

What is the function of Copy Export within an IBM TS7760?
A . Copies data between grid connected IBM TS7760s
B . Moves data out of cache to provide more space
C . Creates copies of data on tape for disaster recovery
D . Exports data to be read by third-party tape drives

Answer: C

Explanation:

The copy export function allows a copy of selected virtual volumes that are written to the TS7700 to be removed and taken offsite for disaster recovery purposes.

https://www.ibm.com/support/knowledgecenter/en/STFS69_4.1.2/ts7740_export_import_overview.html