What is a benefit of port channeling in MDSseries switches/directors?

A.
If one ISL fails, traffic previously carried on this link is switched to the remaining ISL

B.
It allows for the separation of VSAN traffic across one or more line cards

C.
It allows multiple VSANs to share a common interface to another physical switch

D.
It associates two or more IP ports within a Cisco switch or director for failover purposes