Answer: 6

Geo-zone-redundant storage (GZRS) maintains six copies of data: three copies are stored synchronously across availability zones within the primary region for high availability, and three additional copies are replicated asynchronously to a secondary geographic region for disaster recovery protection. This aligns with Microsoft's official documentation on Azure storage redundancy. Option C (6) is correct as it matches the total number of copies. Options A (2), B (3), and D (12) are incorrect because they do not reflect the combined synchronous and asynchronous replication strategy of GZRS.

Author: LeetQuiz Editorial Team