An administrator needs to configure VPN user access for multiple sites using the same soft FortiToken. Each site has a FortiGate VPN gateway. What must an admin...

An administrator needs to configure VPN user access for multiple sites using the same soft FortiToken. Each site has a FortiGate VPN gateway.
What must an administrator do to achieve this objective?

A. The administrator must use the user self-registration server. B. The administrator must use a FortiAuthenticator device. C. The administrator can register the same FortiToken on more than one FortiGate. D. The administrator can use a third-party radius OTP server.