A customer experiences a sudden loss in write performance on the HP 3PAR StoreServ array on
the primary site. Reads are not affected, but writes slowed down significantly.
What should you advise the customer to check first in order to solve the issue?

A.
replication type (if set to asynchronous periodic, set it to synchronous)

B.
Fibre Channel infrastructure and optical cabling for malfunctioning components

C.
host multi-pathing software (update it to the newest available version)

D.
replication type (if set to synchronous. set it to asynchronous periodic)