Refer to the exhibit.

According to the error message, why is FortiManager failing to add the FortiAnalyzer device?
Refer to the exhibit.
According to the error message, why is FortiManager failing to add the FortiAnalyzer device?
The error message 'Probe failed: network' indicates a connectivity issue between FortiManager and FortiAnalyzer. One common cause is that the administrative access settings on the FortiAnalyzer device are not correctly configured to allow FortiManager to connect. The administrator must enable the FortiManager administrative access checkbox on the FortiAnalyzer management interface to resolve this issue.
Tricky question as Probe Failed: Network can mean several things. But I'd go with option D. The 'fgfm-access’ on connecting interface must be enabled.
https://docs.fortinet.com/document/fortianalyzer/7.2.0/administration-guide/578841/configuring-network-interfaces
FortiAnalyzer administrative access checkbox has to be enabled
Lab Guide (p.21) "Before you add FortiAnalyzer to FortiManager, you must enable the FortiManager Administrative Access checkbox on the FortiAnalyzer management interface."
D is the correct answer