Which of the following should the technician check?

A technician replaces a customer’s router, and is now unable to ping the ISP’s gateway. Which of the following should the technician check?

A.
The arp table of the new customer’s router.

B.
The route table of the next-hop router.

C.
The route table of the new customer’s router.

D.
The arp table of a network user.