Which statement is correct in this scenario?

You want to manage a FortiGate with the FortiCloud service. The FortiGate shows up in your list of devices on the FortiCloud Web site, but all management functions are either missing or grayed out.

Which statement is correct in this scenario?
A . The management tunnel mode on the managed FortiGate must be changed to normal.
B . The managed FortiGate is running a version of FortiOS that is either too new or too old for FortiCloud.
C . The managed FortiGate requires that a FortiCloud management license be purchased and applied.
D . You must manually configure system central-managementon the FortiGate CLI and set the management type to fortiguard.

Answer: D