What is a possible reason for this behavior?

A company deployed an Isilon cluster that consists of eight nodes connected to a main production subnet by all available 10GB ports. Later, the company decided to implement a disaster recovery solution with a separate replication subnet. During the reconfiguration, one of the 10Gb ports from each of the nodes 1-4 was moved into the new pool and SBR was activated.

After activating the replication policies, the administrator noticed that the main production ports on nodes 1-4 reached the bandwidth limit.

What is a possible reason for this behavior?
A . Default gateway for the replication subnet has a higher priority value.
B . Default gateway for the replication subnet is not specified.
C . Default gateway for the replication subnet has a lower priority value.
D . Main production ports have a smaller bandwidth limit than replication ports.

Answer: B