You implemented FortiGate in transparent mode with 10 different VLAN interfaces in the same forwarding domain. You have defined a policy to allow traffic from any interface to any interface.
Which statement about your implementation is true? http://kb.fortinet.com/kb/viewAttachment.do? attachID=Fortigate_Transparent_Mode_Technical_Guide_FortiOS_4_0_version1.2.pdf&documentID=FD33113

A.
FortiGate populates the MAC address table based on destination addresses of frames received from all 10
VLANs.

B.
There will be no impact on the STP protocol.

C.
All 10 VLANs will become a single broadcast domain for the ARP request.

D.
The ARP request will not be forwarded across the different VLANs domains.