In a new installation of broadband, none of the computers can connect to the Internet. A router is used to connect the computers to the broadband modem. Which of the following is the correct sequence to diagnose the problem?

A.
Verify modem operation by plugging in a computer directly to the modem, verify operation of the router, verify proper setup of dynamic host configuration protocol (DHCP), and verify proper setup of computer settings.

B.
Verify proper setup of computer settings, verify operation of the router, verify proper setup of DHCP, and verify modem operation by plugging in a computer directly to the modem.

C.
Verify operation of the router, verify modem operation by plugging in a computer directly to the modem, verify proper setup of DHCP, and verify proper setup of computer settings.

D.
Verify proper setup of DHCP, verify modem operation by plugging in a computer directly to the modem, verify operation of the router, and verify proper setup of computer settings.