Refer to the exhibit. 

An administrator is trying to configure a medium load balancer in a production environment, but is getting the error message shown in the exhibit. Which step must the administrator perform to remediate the problem? 

Answer options:

A. Reduce the size of the virtual pool.
B. Restart the NSX Manager.
C. Power-off the existing load balancer and change its size.
D. Place the Tier-1 Gateway in a large edge cluster and redeploy the load balancer.

D