Refer to the following exhibit.
Why is FortiGate not blocking the test file over FTP download?
A . Deep-inspection must be enabled for FortiGate to fully scan FTP traffic.
B . FortiGate needs to be operating in flow-based inspection mode in order to scan FTP traffic.
C . The FortiSandbox signature database is required to successfully scan FTP traffic.
D . The proxy options profile needs to scan FTP traffic on a non-standard port.
Answer: D