Answer:
D. Her computer is a DHCP client.
Step-by-step explanation:
Since in the question it is mentioned that IP address is different as compared in the previous week also the user did not make any changes with respect to the TCP/IP configuration and the system is working well
So this situation represents that the user computer is a client of DHCP as it deals with the client-server protocol in which it automatically generates the IP i.e Internet protocol along with the IP address
Hence, the correct option is d.