Refer to the exhibit showing FortiGate configurations. FortiManager VM high availability (HA) is not functioning as expected after being added to an existing de...

Refer to the exhibit showing FortiGate configurations.
FortiManager VM high availability (HA) is not functioning as expected after being added to an existing deployment.
The administrator finds that VRRP HA mode is selected, but primary and secondary roles are greyed out in the GUI. The managed devices never show online when FMG-B becomes primary, but they will show online whenever the FMG-A becomes primary.
What change will correct HA functionality in this scenario?

A. Change the FortiManager IP address on the managed FortiGate to 10.3.106.65. B. Make the monitored IP to match on both FortiManager devices. C. Unset the primary and secondary roles in the FortiManager CLI configuration so VRRP will decide who is primary. D. Change the priority of FMG-A to be numerically lower for higher preference.