While installing an on-line enabled gaming system, the integrator verifies the gaming system is connected to the LAN, but cannot reach the Internet. Which of the following choices could provide a solution in connecting the system to the Internet?

A.
Verify the correct ports are open on the router.

B.
Verify the file transfer protocol (FTP) function is enabled and the online subscription is valid.

C.
Verify the virtual private network (VPN) is properly configured and authenticated.

D.
Verify file sharing is enabled on the personal computer.