What would be the best solution to get the FC link utilization up as high as possible?

A company has a DR site connected using a 4 Gbps FC link and two RPAs on the primary site, and two RPAs at the DR site. They are experiencing high load events although the FC link is not fully utilized.

What would be the best solution to get the FC link utilization up as high as possible?
A . Add two RPAs to the primary site and add two RPAs to the DR site
B . Add two RPAs to the primary site only
C . Use distributed consistency groups with one primary RPA and two secondary RPAs on the primary site
D . Add two RPAs to the DR site only

Answer: A