How can they minimize the resulting impact on performance?

A company has several LUNs being accessed by VMware ESXi over iSCSI.

How can they minimize the resulting impact on performance?
A . Configure the ESXi host for Round Robin Path Selection with IOPS limit of 2
B . Configure the ESXi host to send an ACK for every other full-sized data segment
C . Enable “DelayedACK” on the ESXi host
D . Disable “DelayedACK” on the ESXi host

Answer: D