Which of the Following Statements About the Differences Between DAS

Which of the following statements about the differences between DAS and SAN is incorrect?

A) SAN uses the Fibre Channel or iSCSI protocol and therefore offers better scalability.
B) DAS applies to small and medium LANs that have general storage capacity requirements and only a small number of servers.
C) DAS and SAN are both external storage and can achieve storage resource sharing easily.
D) SAN applies to mid-range and high-end storage application environments such as key databases, centralized storage, mass storage, backup, and disaster recovery.