Which features were introduced in SCOS 7.3?

Which features were introduced in SCOS 7.3?

A. Distributed Sparing and Live Volume ALUA

B. Data-in-Place upgrade for SC4020 and 4K HDD support
C. Unisphere for SC and Live Volume Auto-failover
D. CloudlQ support and Cross Platform Replication

Reference: https://www.delltechnologies.com/en-us/blog/storage-center-os-7-3-brings-big-performance-boost-to-sc-series-arrays/